56575477 has 4 divisors (see below), whose sum is σ = 64657696. Its totient is φ = 48493260.

The previous prime is 56575459. The next prime is 56575517. The reversal of 56575477 is 77457565.

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-56575477 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 (56575417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4041099 + ... + 4041112.

It is an arithmetic number, because the mean of its divisors is an integer number (16164424).

Almost surely, 2^56575477 is an apocalyptic number.

It is an amenable number.

56575477 is a deficient number, since it is larger than the sum of its proper divisors (8082219).

56575477 is an equidigital number, since it uses as much as digits as its factorization.

56575477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8082218.

The product of its digits is 1029000, while the sum is 46.

The square root of 56575477 is about 7521.6671689194. The cubic root of 56575477 is about 383.8923060447.

The spelling of 56575477 in words is "fifty-six million, five hundred seventy-five thousand, four hundred seventy-seven".