56133620 has 24 divisors (see below), whose sum is σ = 118087200. Its totient is φ = 22414112.

The previous prime is 56133587. The next prime is 56133667. The reversal of 56133620 is 2633165.

It is a self number, because there is not a number n which added to its sum of digits gives 56133620.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11051 + ... + 15309.

It is an arithmetic number, because the mean of its divisors is an integer number (4920300).

Almost surely, 2^56133620 is an apocalyptic number.

It is an amenable number.

56133620 is an abundant number, since it is smaller than the sum of its proper divisors (61953580).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56133620 is a wasteful number, since it uses less digits than its factorization.

56133620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4927 (or 4925 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 56133620 is about 7492.2373160492. The cubic root of 56133620 is about 382.8902875494.

Adding to 56133620 its reverse (2633165), we get a palindrome (58766785).

The spelling of 56133620 in words is "fifty-six million, one hundred thirty-three thousand, six hundred twenty".