55620056 has 16 divisors (see below), whose sum is σ = 110422440. Its totient is φ = 26174080.

The previous prime is 55620053. The next prime is 55620079. The reversal of 55620056 is 65002655.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55620053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 204350 + ... + 204621.

Almost surely, 2^55620056 is an apocalyptic number.

It is an amenable number.

55620056 is a deficient number, since it is larger than the sum of its proper divisors (54802384).

55620056 is a wasteful number, since it uses less digits than its factorization.

55620056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408994 (or 408990 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 29.

The square root of 55620056 is about 7457.8854912100. The cubic root of 55620056 is about 381.7190262277.

The spelling of 55620056 in words is "fifty-five million, six hundred twenty thousand, fifty-six".