56133663 has 4 divisors (see below), whose sum is σ = 74844888. Its totient is φ = 37422440.

The previous prime is 56133587. The next prime is 56133667. The reversal of 56133663 is 36633165.

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 56133663 - 2¹⁶ = 56068127 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56133667) 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, 9355608 + ... + 9355613.

It is an arithmetic number, because the mean of its divisors is an integer number (18711222).

Almost surely, 2^56133663 is an apocalyptic number.

56133663 is a deficient number, since it is larger than the sum of its proper divisors (18711225).

56133663 is a wasteful number, since it uses less digits than its factorization.

56133663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18711224.

The product of its digits is 29160, while the sum is 33.

The square root of 56133663 is about 7492.2401856855. The cubic root of 56133663 is about 382.8903853178.

The spelling of 56133663 in words is "fifty-six million, one hundred thirty-three thousand, six hundred sixty-three".