56221156 has 6 divisors (see below), whose sum is σ = 98387030. Its totient is φ = 28110576.

The previous prime is 56221141. The next prime is 56221163. The reversal of 56221156 is 65112265.

It can be written as a sum of positive squares in only one way, i.e., 53787556 + 2433600 = 7334^2 + 1560^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7027641 + ... + 7027648.

Almost surely, 2^56221156 is an apocalyptic number.

It is an amenable number.

56221156 is a deficient number, since it is larger than the sum of its proper divisors (42165874).

56221156 is a wasteful number, since it uses less digits than its factorization.

56221156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14055293 (or 14055291 counting only the distinct ones).

The product of its digits is 3600, while the sum is 28.

The square root of 56221156 is about 7498.0768200919. The cubic root of 56221156 is about 383.0892133570.

The spelling of 56221156 in words is "fifty-six million, two hundred twenty-one thousand, one hundred fifty-six".