31256100616425 has 48 divisors (see below), whose sum is σ = 51754817360640. Its totient is φ = 16644756810240.

The previous prime is 31256100616423. The next prime is 31256100616501. The reversal of 31256100616425 is 52461600165213.

It is not a de Polignac number, because 31256100616425 - 2¹ = 31256100616423 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31256100616423) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 136466352 + ... + 136695198.

It is an arithmetic number, because the mean of its divisors is an integer number (1078225361680).

Almost surely, 2^{31256100616425} is an apocalyptic number.

It is an amenable number.

31256100616425 is a deficient number, since it is larger than the sum of its proper divisors (20498716744215).

31256100616425 is a wasteful number, since it uses less digits than its factorization.

31256100616425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231602 (or 231597 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 42.

The spelling of 31256100616425 in words is "thirty-one trillion, two hundred fifty-six billion, one hundred million, six hundred sixteen thousand, four hundred twenty-five".