56403672 has 64 divisors (see below), whose sum is σ = 152621280. Its totient is φ = 17267712.

The previous prime is 56403667. The next prime is 56403689. The reversal of 56403672 is 27630465.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91108 + ... + 91724.

Almost surely, 2^56403672 is an apocalyptic number.

56403672 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56403672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76310640).

56403672 is an abundant number, since it is smaller than the sum of its proper divisors (96217608).

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

56403672 is a wasteful number, since it uses less digits than its factorization.

56403672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 932 (or 928 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 33.

The square root of 56403672 is about 7510.2378124797. The cubic root of 56403672 is about 383.5033183517.

It can be divided in two parts, 56403 and 672, that added together give a palindrome (57075).

The spelling of 56403672 in words is "fifty-six million, four hundred three thousand, six hundred seventy-two".