31352352252 has 48 divisors (see below), whose sum is σ = 79958723712. Its totient is φ = 9502891200.

The previous prime is 31352352247. The next prime is 31352352277. The reversal of 31352352252 is 25225325313.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1489374 + ... + 1510277.

It is an arithmetic number, because the mean of its divisors is an integer number (1665806744).

Almost surely, 2^31352352252 is an apocalyptic number.

It is an amenable number.

31352352252 is an abundant number, since it is smaller than the sum of its proper divisors (48606371460).

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

31352352252 is a wasteful number, since it uses less digits than its factorization.

31352352252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2999738 (or 2999736 counting only the distinct ones).

The product of its digits is 54000, while the sum is 33.

Adding to 31352352252 its reverse (25225325313), we get a palindrome (56577677565).

The spelling of 31352352252 in words is "thirty-one billion, three hundred fifty-two million, three hundred fifty-two thousand, two hundred fifty-two".