25807137316 has 27 divisors (see below), whose sum is σ = 46170855409. Its totient is φ = 12621634928.

The previous prime is 25807137287. The next prime is 25807137337. The reversal of 25807137316 is 61373170852.

The square root of 25807137316 is 160646.

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

It can be written as a sum of positive squares in only one way, i.e., 4851679716 + 20955457600 = 69654^2 + 144760^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 15099870 + ... + 15101578.

Almost surely, 2^25807137316 is an apocalyptic number.

25807137316 is the 160646-th square number.

It is an amenable number.

25807137316 is a deficient number, since it is larger than the sum of its proper divisors (20363718093).

25807137316 is an frugal number, since it uses more digits than its factorization.

25807137316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3516 (or 1758 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 43.

The spelling of 25807137316 in words is "twenty-five billion, eight hundred seven million, one hundred thirty-seven thousand, three hundred sixteen".