56600557 has 4 divisors (see below), whose sum is σ = 60954460. Its totient is φ = 52246656.

The previous prime is 56600543. The next prime is 56600573. The reversal of 56600557 is 75500665.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 75500665 = 5 ⋅15100133.

It can be written as a sum of positive squares in 2 ways, for example, as 17023876 + 39576681 = 4126^2 + 6291^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56600557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56600587) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2176932 + ... + 2176957.

It is an arithmetic number, because the mean of its divisors is an integer number (15238615).

Almost surely, 2^56600557 is an apocalyptic number.

It is an amenable number.

56600557 is a deficient number, since it is larger than the sum of its proper divisors (4353903).

56600557 is a wasteful number, since it uses less digits than its factorization.

56600557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4353902.

The product of its (nonzero) digits is 31500, while the sum is 34.

The square root of 56600557 is about 7523.3341677743. The cubic root of 56600557 is about 383.9490243567.

The spelling of 56600557 in words is "fifty-six million, six hundred thousand, five hundred fifty-seven".