3251387631325 has 12 divisors (see below), whose sum is σ = 4035700675188. Its totient is φ = 2598542355200.

The previous prime is 3251387631301. The next prime is 3251387631343. The reversal of 3251387631325 is 5231367831523.

It can be written as a sum of positive squares in 6 ways, for example, as 1392751662201 + 1858635969124 = 1180149^2 + 1363318^2 .

It is not a de Polignac number, because 3251387631325 - 2⁵ = 3251387631293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 64167916 + ... + 64218565.

It is an arithmetic number, because the mean of its divisors is an integer number (336308389599).

Almost surely, 2^{3251387631325} is an apocalyptic number.

It is an amenable number.

3251387631325 is a deficient number, since it is larger than the sum of its proper divisors (784313043863).

3251387631325 is a wasteful number, since it uses less digits than its factorization.

3251387631325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128387504 (or 128387499 counting only the distinct ones).

The product of its digits is 2721600, while the sum is 49.

The spelling of 3251387631325 in words is "three trillion, two hundred fifty-one billion, three hundred eighty-seven million, six hundred thirty-one thousand, three hundred twenty-five".