56971597 has 4 divisors (see below), whose sum is σ = 57321280. Its totient is φ = 56621916.

The previous prime is 56971589. The next prime is 56971613. The reversal of 56971597 is 79517965.

56971597 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 not a de Polignac number, because 56971597 - 2³ = 56971589 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56971597.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56971547) 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, 174597 + ... + 174922.

It is an arithmetic number, because the mean of its divisors is an integer number (14330320).

Almost surely, 2^56971597 is an apocalyptic number.

It is an amenable number.

56971597 is a deficient number, since it is larger than the sum of its proper divisors (349683).

56971597 is a wasteful number, since it uses less digits than its factorization.

56971597 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349682.

The product of its digits is 595350, while the sum is 49.

The square root of 56971597 is about 7547.9531662564. The cubic root of 56971597 is about 384.7861791284.

The spelling of 56971597 in words is "fifty-six million, nine hundred seventy-one thousand, five hundred ninety-seven".