55659933 has 24 divisors (see below), whose sum is σ = 95924160. Its totient is φ = 31804920.

The previous prime is 55659917. The next prime is 55659937. The reversal of 55659933 is 33995655.

It is a happy number.

55659933 is a `hidden beast` number, since 5 + 56 + 599 + 3 + 3 = 666.

It is not a de Polignac number, because 55659933 - 2⁴ = 55659917 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55659937) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19713 + ... + 22358.

It is an arithmetic number, because the mean of its divisors is an integer number (3996840).

Almost surely, 2^55659933 is an apocalyptic number.

It is an amenable number.

55659933 is a deficient number, since it is larger than the sum of its proper divisors (40264227).

55659933 is a wasteful number, since it uses less digits than its factorization.

55659933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42094 (or 42081 counting only the distinct ones).

The product of its digits is 546750, while the sum is 45.

The square root of 55659933 is about 7460.5584911587. The cubic root of 55659933 is about 381.8102293798.

The spelling of 55659933 in words is "fifty-five million, six hundred fifty-nine thousand, nine hundred thirty-three".