56021551222 has 48 divisors (see below), whose sum is σ = 109866163680. Its totient is φ = 20858683392.

The previous prime is 56021551217. The next prime is 56021551247. The reversal of 56021551222 is 22215512065.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 479947 + ... + 585142.

It is an arithmetic number, because the mean of its divisors is an integer number (2288878410).

Almost surely, 2^56021551222 is an apocalyptic number.

56021551222 is a deficient number, since it is larger than the sum of its proper divisors (53844612458).

56021551222 is a wasteful number, since it uses less digits than its factorization.

56021551222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1065145 (or 1065128 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 31.

The spelling of 56021551222 in words is "fifty-six billion, twenty-one million, five hundred fifty-one thousand, two hundred twenty-two".