25685190756 has 27 divisors (see below), whose sum is σ = 64928885203. Its totient is φ = 8561409720.

The previous prime is 25685190743. The next prime is 25685190767. The reversal of 25685190756 is 65709158652.

The square root of 25685190756 is 160266.

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

25685190756 is a `hidden beast` number, since 2 + 56 + 8 + 519 + 0 + 75 + 6 = 666.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 948241 + ... + 974951.

Almost surely, 2^25685190756 is an apocalyptic number.

25685190756 is the 160266-th square number.

It is an amenable number.

25685190756 is an abundant number, since it is smaller than the sum of its proper divisors (39243694447).

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

25685190756 is an frugal number, since it uses more digits than its factorization.

25685190756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53432 (or 26716 counting only the distinct ones).

The product of its (nonzero) digits is 4536000, while the sum is 54.

The spelling of 25685190756 in words is "twenty-five billion, six hundred eighty-five million, one hundred ninety thousand, seven hundred fifty-six".