56143956 has 24 divisors (see below), whose sum is σ = 142912224. Its totient is φ = 17013280.

The previous prime is 56143949. The next prime is 56144017. The reversal of 56143956 is 65934165.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 212535 + ... + 212798.

It is an arithmetic number, because the mean of its divisors is an integer number (5954676).

Almost surely, 2^56143956 is an apocalyptic number.

It is an amenable number.

56143956 is an abundant number, since it is smaller than the sum of its proper divisors (86768268).

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

56143956 is a wasteful number, since it uses less digits than its factorization.

56143956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425351 (or 425349 counting only the distinct ones).

The product of its digits is 97200, while the sum is 39.

The square root of 56143956 is about 7492.9270649059. The cubic root of 56143956 is about 382.9137869017.

The spelling of 56143956 in words is "fifty-six million, one hundred forty-three thousand, nine hundred fifty-six".