56837663 has 4 divisors (see below), whose sum is σ = 58671168. Its totient is φ = 55004160.

The previous prime is 56837633. The next prime is 56837687. The reversal of 56837663 is 36673865.

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

It is a cyclic number.

It is not a de Polignac number, because 56837663 - 2¹⁴ = 56821279 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 (56837633) 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, 916706 + ... + 916767.

It is an arithmetic number, because the mean of its divisors is an integer number (14667792).

Almost surely, 2^56837663 is an apocalyptic number.

56837663 is a deficient number, since it is larger than the sum of its proper divisors (1833505).

56837663 is a wasteful number, since it uses less digits than its factorization.

56837663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1833504.

The product of its digits is 544320, while the sum is 44.

The square root of 56837663 is about 7539.0757391075. The cubic root of 56837663 is about 384.4844124423.

The spelling of 56837663 in words is "fifty-six million, eight hundred thirty-seven thousand, six hundred sixty-three".