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25313055534 = 23213108175451
BaseRepresentation
bin10111100100110001…
…101001001100101110
32102100002222110021100
4113210301221030232
5403320120234114
615343442343530
71554165264504
oct274461511456
972302873240
1025313055534
11a80a618308
124aa535aba6
132505355890
141321b98674
159d240e909
hex5e4c6932e

25313055534 has 24 divisors (see below), whose sum is σ = 59063796792. Its totient is φ = 7788632400.

The previous prime is 25313055529. The next prime is 25313055553. The reversal of 25313055534 is 43555031352.

25313055534 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 54087492 + ... + 54087959.

It is an arithmetic number, because the mean of its divisors is an integer number (2460991533).

Almost surely, 225313055534 is an apocalyptic number.

25313055534 is an abundant number, since it is smaller than the sum of its proper divisors (33750741258).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25313055534 is a wasteful number, since it uses less digits than its factorization.

25313055534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108175472 (or 108175469 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 36.

Adding to 25313055534 its reverse (43555031352), we get a palindrome (68868086886).

The spelling of 25313055534 in words is "twenty-five billion, three hundred thirteen million, fifty-five thousand, five hundred thirty-four".

Divisors: 1 2 3 6 9 13 18 26 39 78 117 234 108175451 216350902 324526353 649052706 973579059 1406280863 1947158118 2812561726 4218842589 8437685178 12656527767 25313055534