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260523472225 = 52312372892
BaseRepresentation
bin1111001010100001101…
…0001011010101100001
3220220110022212122010211
43302220122023111201
513232023002102400
6315403254054121
724552004655542
oct3625032132541
9826408778124
10260523472225
11a053a787735
12425a894a341
131b74b35c133
14c8762ba4c9
156b9bb29dba
hex3ca868b561

260523472225 has 81 divisors (see below), whose sum is σ = 346969876491. Its totient is φ = 194039366400.

The previous prime is 260523472043. The next prime is 260523472273. The reversal of 260523472225 is 522274325062.

The square root of 260523472225 is 510415.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 13 ways, for example, as 135105499489 + 125417972736 = 367567^2 + 354144^2 .

It is not a de Polignac number, because 260523472225 - 215 = 260523439457 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 2927229981 + ... + 2927230069.

Almost surely, 2260523472225 is an apocalyptic number.

260523472225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

260523472225 is the 510415-th square number.

260523472225 is the 255208-th centered octagonal number.

It is an amenable number.

260523472225 is a deficient number, since it is larger than the sum of its proper divisors (86446404266).

260523472225 is an frugal number, since it uses more digits than its factorization.

260523472225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324 (or 162 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 40.

Adding to 260523472225 its reverse (522274325062), we get a palindrome (782797797287).

The spelling of 260523472225 in words is "two hundred sixty billion, five hundred twenty-three million, four hundred seventy-two thousand, two hundred twenty-five".

Divisors: 1 5 25 31 37 89 155 185 445 775 925 961 1147 1369 2225 2759 3293 4805 5735 6845 7921 13795 16465 24025 28675 34225 35557 39605 42439 68975 82325 85529 102083 121841 177785 198025 212195 245551 293077 427645 510415 609205 888925 1060975 1227755 1315609 1465385 2138225 2552075 3046025 3164573 3777071 6138775 6578045 7326925 7612081 9085387 10843849 15822865 18885355 32890225 38060405 45426935 54219245 79114325 94426775 117089201 190302025 227134675 271096225 281646997 336159319 585446005 1408234985 1680796595 2927230025 7041174925 8403982975 10420938889 52104694445 260523472225