56143836 has 36 divisors (see below), whose sum is σ = 162194032. Its totient is φ = 16041024.

The previous prime is 56143823. The next prime is 56143909. The reversal of 56143836 is 63834165.

56143836 is a `hidden beast` number, since 5 + 614 + 3 + 8 + 36 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 56143836.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 111145 + ... + 111648.

Almost surely, 2^56143836 is an apocalyptic number.

It is an amenable number.

56143836 is an abundant number, since it is smaller than the sum of its proper divisors (106050196).

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

56143836 is a wasteful number, since it uses less digits than its factorization.

56143836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222810 (or 222805 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 56143836 is about 7492.9190573501. The cubic root of 56143836 is about 382.9135140930.

56143836 divided by its sum of digits (36) gives a palindrome (1559551).

The spelling of 56143836 in words is "fifty-six million, one hundred forty-three thousand, eight hundred thirty-six".