56637361 has 4 divisors (see below), whose sum is σ = 61786224. Its totient is φ = 51488500.

The previous prime is 56637323. The next prime is 56637367. The reversal of 56637361 is 16373665.

56637361 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 56637361 - 2⁹ = 56636849 is a prime.

It is a super-2 number, since 2×56637361² = 6415581322088642, which contains 22 as substring.

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 56637361.

It is not an unprimeable number, because it can be changed into a prime (56637367) 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, 2574415 + ... + 2574436.

It is an arithmetic number, because the mean of its divisors is an integer number (15446556).

Almost surely, 2^56637361 is an apocalyptic number.

It is an amenable number.

56637361 is a deficient number, since it is larger than the sum of its proper divisors (5148863).

56637361 is a wasteful number, since it uses less digits than its factorization.

56637361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5148862.

The product of its digits is 68040, while the sum is 37.

The square root of 56637361 is about 7525.7797602640. The cubic root of 56637361 is about 384.0322261185.

It can be divided in two parts, 5 and 6637361, that added together give a palindrome (6637366).

The spelling of 56637361 in words is "fifty-six million, six hundred thirty-seven thousand, three hundred sixty-one".