57663623 has 4 divisors (see below), whose sum is σ = 58223568. Its totient is φ = 57103680.

The previous prime is 57663611. The next prime is 57663637. The reversal of 57663623 is 32636675.

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 57663623 - 2¹⁰ = 57662599 is a prime.

It is a super-2 number, since 2×57663623² = 6650186834972258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57668623) 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, 279818 + ... + 280023.

It is an arithmetic number, because the mean of its divisors is an integer number (14555892).

Almost surely, 2^57663623 is an apocalyptic number.

57663623 is a deficient number, since it is larger than the sum of its proper divisors (559945).

57663623 is a wasteful number, since it uses less digits than its factorization.

57663623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 559944.

The product of its digits is 136080, while the sum is 38.

The square root of 57663623 is about 7593.6567607445. The cubic root of 57663623 is about 386.3378944166.

The spelling of 57663623 in words is "fifty-seven million, six hundred sixty-three thousand, six hundred twenty-three".