25885790508 has 24 divisors (see below), whose sum is σ = 61423911360. Its totient is φ = 8482349200.

The previous prime is 25885790507. The next prime is 25885790549. The reversal of 25885790508 is 80509758852.

It is not an unprimeable number, because it can be changed into a prime (25885790501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18280218 + ... + 18281633.

It is an arithmetic number, because the mean of its divisors is an integer number (2559329640).

Almost surely, 2^25885790508 is an apocalyptic number.

It is an amenable number.

25885790508 is an abundant number, since it is smaller than the sum of its proper divisors (35538120852).

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

25885790508 is a wasteful number, since it uses less digits than its factorization.

25885790508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36561917 (or 36561915 counting only the distinct ones).

The product of its (nonzero) digits is 8064000, while the sum is 57.

The spelling of 25885790508 in words is "twenty-five billion, eight hundred eighty-five million, seven hundred ninety thousand, five hundred eight".