56504477 has 4 divisors (see below), whose sum is σ = 57462240. Its totient is φ = 55546716.

The previous prime is 56504471. The next prime is 56504479. The reversal of 56504477 is 77440565.

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, and also an emirpimes, since its reverse is a distinct semiprime: 77440565 = 5 ⋅15488113.

It is a cyclic number.

It is not a de Polignac number, because 56504477 - 2⁸ = 56504221 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 56504477.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56504471) 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, 478793 + ... + 478910.

It is an arithmetic number, because the mean of its divisors is an integer number (14365560).

Almost surely, 2^56504477 is an apocalyptic number.

It is an amenable number.

56504477 is a deficient number, since it is larger than the sum of its proper divisors (957763).

56504477 is an equidigital number, since it uses as much as digits as its factorization.

56504477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 957762.

The product of its (nonzero) digits is 117600, while the sum is 38.

The square root of 56504477 is about 7516.9459888974. The cubic root of 56504477 is about 383.7316489012.

The spelling of 56504477 in words is "fifty-six million, five hundred four thousand, four hundred seventy-seven".