522120056 has 16 divisors (see below), whose sum is σ = 1021539600. Its totient is φ = 249709504.

The previous prime is 522120043. The next prime is 522120077. The reversal of 522120056 is 650021225.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1418621 + ... + 1418988.

It is an arithmetic number, because the mean of its divisors is an integer number (63846225).

Almost surely, 2^522120056 is an apocalyptic number.

It is an amenable number.

522120056 is a deficient number, since it is larger than the sum of its proper divisors (499419544).

522120056 is a wasteful number, since it uses less digits than its factorization.

522120056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2837638 (or 2837634 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 522120056 is about 22849.9465207252. The cubic root of 522120056 is about 805.2365113987.

The spelling of 522120056 in words is "five hundred twenty-two million, one hundred twenty thousand, fifty-six".