31255605215652 has 12 divisors (see below), whose sum is σ = 72929745503216. Its totient is φ = 10418535071880.

The previous prime is 31255605215617. The next prime is 31255605215677. The reversal of 31255605215652 is 25651250655213.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1302316883974 + ... + 1302316883997.

Almost surely, 2^{31255605215652} is an apocalyptic number.

It is an amenable number.

31255605215652 is an abundant number, since it is smaller than the sum of its proper divisors (41674140287564).

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

31255605215652 is a wasteful number, since it uses less digits than its factorization.

31255605215652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2604633767978 (or 2604633767976 counting only the distinct ones).

The product of its (nonzero) digits is 2700000, while the sum is 48.

The spelling of 31255605215652 in words is "thirty-one trillion, two hundred fifty-five billion, six hundred five million, two hundred fifteen thousand, six hundred fifty-two".