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546512740225 = 521478532
BaseRepresentation
bin1111111001111101011…
…00101001111110000001
31221020122102010201202221
413330332230221332001
532423224230141400
61055021532411041
754325044434104
oct7747654517601
91836572121687
10546512740225
111a0858215681
1289b02016a81
133c6c759207a
141c64675073b
15e339285c1a
hex7f3eb29f81

546512740225 has 9 divisors (see below), whose sum is σ = 677680381353. Its totient is φ = 437207235120.

The previous prime is 546512740133. The next prime is 546512740229. The reversal of 546512740225 is 522047215645.

The square root of 546512740225 is 739265.

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

It can be written as a sum of positive squares in 4 ways, for example, as 240146062209 + 306366678016 = 490047^2 + 553504^2 .

It is not a de Polignac number, because 546512740225 - 219 = 546512215937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (546512740229) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 3622399 + ... + 3770251.

Almost surely, 2546512740225 is an apocalyptic number.

546512740225 is the 739265-th square number.

546512740225 is the 369633-rd centered octagonal number.

It is an amenable number.

546512740225 is a deficient number, since it is larger than the sum of its proper divisors (131167641128).

546512740225 is an frugal number, since it uses more digits than its factorization.

546512740225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295716 (or 147858 counting only the distinct ones).

The product of its (nonzero) digits is 672000, while the sum is 43.

The spelling of 546512740225 in words is "five hundred forty-six billion, five hundred twelve million, seven hundred forty thousand, two hundred twenty-five".

Divisors: 1 5 25 147853 739265 3696325 21860509609 109302548045 546512740225