56143488 has 64 divisors (see below), whose sum is σ = 149940000. Its totient is φ = 18613248.

The previous prime is 56143471. The next prime is 56143523. The reversal of 56143488 is 88434165.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×56143488² = 6304182489612288, which contains 22 as substring.

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, 112263 + ... + 112761.

Almost surely, 2^56143488 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56143488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74970000).

56143488 is an abundant number, since it is smaller than the sum of its proper divisors (93796512).

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

56143488 is a wasteful number, since it uses less digits than its factorization.

56143488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 809 (or 797 counting only the distinct ones).

The product of its digits is 92160, while the sum is 39.

The square root of 56143488 is about 7492.8958353897. The cubic root of 56143488 is about 382.9127229454.

The spelling of 56143488 in words is "fifty-six million, one hundred forty-three thousand, four hundred eighty-eight".