31505253452 has 12 divisors (see below), whose sum is σ = 55146313656. Its totient is φ = 15749163840.

The previous prime is 31505253449. The next prime is 31505253487. The reversal of 31505253452 is 25435250513.

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, 845198 + ... + 881685.

It is an arithmetic number, because the mean of its divisors is an integer number (4595526138).

Almost surely, 2^31505253452 is an apocalyptic number.

It is an amenable number.

31505253452 is a deficient number, since it is larger than the sum of its proper divisors (23641060204).

31505253452 is a wasteful number, since it uses less digits than its factorization.

31505253452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1731448 (or 1731446 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 35.

The spelling of 31505253452 in words is "thirty-one billion, five hundred five million, two hundred fifty-three thousand, four hundred fifty-two".