25456085684 has 12 divisors (see below), whose sum is σ = 44553401508. Its totient is φ = 12726542400.

The previous prime is 25456085647. The next prime is 25456085723. The reversal of 25456085684 is 48658065452.

It can be written as a sum of positive squares in 2 ways, for example, as 5560983184 + 19895102500 = 74572^2 + 141050^2 .

It is a super-3 number, since 3×25456085684³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 336497 + ... + 405144.

It is an arithmetic number, because the mean of its divisors is an integer number (3712783459).

Almost surely, 2^25456085684 is an apocalyptic number.

It is an amenable number.

25456085684 is a deficient number, since it is larger than the sum of its proper divisors (19097315824).

25456085684 is a wasteful number, since it uses less digits than its factorization.

25456085684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 750226 (or 750224 counting only the distinct ones).

The product of its (nonzero) digits is 9216000, while the sum is 53.

The spelling of 25456085684 in words is "twenty-five billion, four hundred fifty-six million, eighty-five thousand, six hundred eighty-four".