31025252013 has 32 divisors (see below), whose sum is σ = 47955732480. Its totient is φ = 17475585600.

The previous prime is 31025252003. The next prime is 31025252053.

It is a happy number.

31025252013 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 31025252013 - 2⁴ = 31025251997 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31025252003) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 449248 + ... + 513686.

It is an arithmetic number, because the mean of its divisors is an integer number (1498616640).

Almost surely, 2^31025252013 is an apocalyptic number.

It is an amenable number.

31025252013 is a deficient number, since it is larger than the sum of its proper divisors (16930480467).

31025252013 is a wasteful number, since it uses less digits than its factorization.

31025252013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64777.

The product of its (nonzero) digits is 1800, while the sum is 24.

The spelling of 31025252013 in words is "thirty-one billion, twenty-five million, two hundred fifty-two thousand, thirteen".