25864520960 has 36 divisors (see below), whose sum is σ = 61953613428. Its totient is φ = 10345807872.

The previous prime is 25864520951. The next prime is 25864520971. The reversal of 25864520960 is 6902546852.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 16147293184 + 9717227776 = 127072^2 + 98576^2 .

It is a super-3 number, since 3×25864520960³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10102049 + ... + 10104608.

Almost surely, 2^25864520960 is an apocalyptic number.

25864520960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25864520960 is an abundant number, since it is smaller than the sum of its proper divisors (36089092468).

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

25864520960 is an equidigital number, since it uses as much as digits as its factorization.

25864520960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20206678 (or 20206664 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 47.

The spelling of 25864520960 in words is "twenty-five billion, eight hundred sixty-four million, five hundred twenty thousand, nine hundred sixty".