56431351522 has 64 divisors (see below), whose sum is σ = 110420755200. Its totient is φ = 20990048256.

The previous prime is 56431351511. The next prime is 56431351579. The reversal of 56431351522 is 22515313465.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3236913 + ... + 3254299.

It is an arithmetic number, because the mean of its divisors is an integer number (1725324300).

Almost surely, 2^56431351522 is an apocalyptic number.

56431351522 is a deficient number, since it is larger than the sum of its proper divisors (53989403678).

56431351522 is a wasteful number, since it uses less digits than its factorization.

56431351522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18475.

The product of its digits is 108000, while the sum is 37.

Adding to 56431351522 its reverse (22515313465), we get a palindrome (78946664987).

The spelling of 56431351522 in words is "fifty-six billion, four hundred thirty-one million, three hundred fifty-one thousand, five hundred twenty-two".