56431032 has 64 divisors (see below), whose sum is σ = 161982720. Its totient is φ = 16048128.

The previous prime is 56431009. The next prime is 56431057. The reversal of 56431032 is 23013465.

It is a happy number.

56431032 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×56431032² = 6368922745170048, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 56430993 and 56431011.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42523 + ... + 43829.

It is an arithmetic number, because the mean of its divisors is an integer number (2530980).

Almost surely, 2^56431032 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 56431032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80991360).

56431032 is an abundant number, since it is smaller than the sum of its proper divisors (105551688).

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

56431032 is a wasteful number, since it uses less digits than its factorization.

56431032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1580 (or 1576 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 56431032 is about 7512.0591051988. The cubic root of 56431032 is about 383.5653175933.

Adding to 56431032 its reverse (23013465), we get a palindrome (79444497).

The spelling of 56431032 in words is "fifty-six million, four hundred thirty-one thousand, thirty-two".