56668051 has 18 divisors (see below), whose sum is σ = 65986620. Its totient is φ = 48494160.

The previous prime is 56668049. The next prime is 56668061. The reversal of 56668051 is 15086665.

It is not a de Polignac number, because 56668051 - 2¹ = 56668049 is a prime.

It is a super-2 number, since 2×56668051² = 6422536008277202, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 56668051.

It is not an unprimeable number, because it can be changed into a prime (56668061) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 360865 + ... + 361021.

Almost surely, 2^56668051 is an apocalyptic number.

56668051 is a deficient number, since it is larger than the sum of its proper divisors (9318569).

56668051 is a wasteful number, since it uses less digits than its factorization.

56668051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355 (or 187 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 37.

The square root of 56668051 is about 7527.8184754947. The cubic root of 56668051 is about 384.1015785780.

The spelling of 56668051 in words is "fifty-six million, six hundred sixty-eight thousand, fifty-one".