56011018 has 12 divisors (see below), whose sum is σ = 97733682. Its totient is φ = 24004680.

The previous prime is 56011009. The next prime is 56011057. The reversal of 56011018 is 81011065.

It can be written as a sum of positive squares in only one way, i.e., 32069569 + 23941449 = 5663^2 + 4893^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 56011018.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 285673 + ... + 285868.

Almost surely, 2^56011018 is an apocalyptic number.

56011018 is a deficient number, since it is larger than the sum of its proper divisors (41722664).

56011018 is a wasteful number, since it uses less digits than its factorization.

56011018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571557 (or 571550 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 22.

The square root of 56011018 is about 7484.0509084319. The cubic root of 56011018 is about 382.6113261898.

The spelling of 56011018 in words is "fifty-six million, eleven thousand, eighteen".