56823637 has 4 divisors (see below), whose sum is σ = 61194700. Its totient is φ = 52452576.

The previous prime is 56823631. The next prime is 56823649. The reversal of 56823637 is 73632865.

56823637 is nontrivially palindromic in base 12.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 29877156 + 26946481 = 5466^2 + 5191^2 .

It is a cyclic number.

It is not a de Polignac number, because 56823637 - 2¹⁵ = 56790869 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 56823637.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56823631) 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, 2185512 + ... + 2185537.

It is an arithmetic number, because the mean of its divisors is an integer number (15298675).

Almost surely, 2^56823637 is an apocalyptic number.

It is an amenable number.

56823637 is a deficient number, since it is larger than the sum of its proper divisors (4371063).

56823637 is a wasteful number, since it uses less digits than its factorization.

56823637 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4371062.

The product of its digits is 181440, while the sum is 40.

The square root of 56823637 is about 7538.1454615840. The cubic root of 56823637 is about 384.4527830512.

The spelling of 56823637 in words is "fifty-six million, eight hundred twenty-three thousand, six hundred thirty-seven".