56969557 has 4 divisors (see below), whose sum is σ = 56998656. Its totient is φ = 56940460.

The previous prime is 56969531. The next prime is 56969579. The reversal of 56969557 is 75596965.

56969557 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56969557 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 (56966557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11383 + ... + 15604.

It is an arithmetic number, because the mean of its divisors is an integer number (14249664).

Almost surely, 2^56969557 is an apocalyptic number.

It is an amenable number.

56969557 is a deficient number, since it is larger than the sum of its proper divisors (29099).

56969557 is a wasteful number, since it uses less digits than its factorization.

56969557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29098.

The product of its digits is 2551500, while the sum is 52.

The square root of 56969557 is about 7547.8180290730. The cubic root of 56969557 is about 384.7815863534.

The spelling of 56969557 in words is "fifty-six million, nine hundred sixty-nine thousand, five hundred fifty-seven".