56115506 has 4 divisors (see below), whose sum is σ = 84173262. Its totient is φ = 28057752.

The previous prime is 56115481. The next prime is 56115529. The reversal of 56115506 is 60551165.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 60551165 = 5 ⋅12110233.

It can be written as a sum of positive squares in only one way, i.e., 36711481 + 19404025 = 6059^2 + 4405^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14028875 + ... + 14028878.

Almost surely, 2^56115506 is an apocalyptic number.

56115506 is a deficient number, since it is larger than the sum of its proper divisors (28057756).

56115506 is a wasteful number, since it uses less digits than its factorization.

56115506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28057755.

The product of its (nonzero) digits is 4500, while the sum is 29.

The square root of 56115506 is about 7491.0283673205. The cubic root of 56115506 is about 382.8490976123.

The spelling of 56115506 in words is "fifty-six million, one hundred fifteen thousand, five hundred six".