56975329 has 4 divisors (see below), whose sum is σ = 56990484. Its totient is φ = 56960176.

The previous prime is 56975323. The next prime is 56975333. The reversal of 56975329 is 92357965.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 36481600 + 20493729 = 6040^2 + 4527^2 .

It is a cyclic number.

It is not a de Polignac number, because 56975329 - 2¹¹ = 56973281 is a prime.

It is a super-2 number, since 2×56975329² = 6492376229316482, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56975323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2799 + ... + 11035.

It is an arithmetic number, because the mean of its divisors is an integer number (14247621).

Almost surely, 2^56975329 is an apocalyptic number.

It is an amenable number.

56975329 is a deficient number, since it is larger than the sum of its proper divisors (15155).

56975329 is an equidigital number, since it uses as much as digits as its factorization.

56975329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15154.

The product of its digits is 510300, while the sum is 46.

The square root of 56975329 is about 7548.2003815479. The cubic root of 56975329 is about 384.7945809212.

It can be divided in two parts, 5697 and 5329, that added together give a triangular number (11026 = T₁₄₈).

The spelling of 56975329 in words is "fifty-six million, nine hundred seventy-five thousand, three hundred twenty-nine".