56172352 has 42 divisors (see below), whose sum is σ = 118448582. Its totient is φ = 26425344.

The previous prime is 56172349. The next prime is 56172353. The reversal of 56172352 is 25327165.

It can be written as a sum of positive squares in 3 ways, for example, as 33362176 + 22810176 = 5776^2 + 4776^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56172353) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16978 + ... + 20014.

Almost surely, 2^56172352 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 56172352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59224291).

56172352 is an abundant number, since it is smaller than the sum of its proper divisors (62276230).

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

56172352 is a wasteful number, since it uses less digits than its factorization.

56172352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3083 (or 3056 counting only the distinct ones).

The product of its digits is 12600, while the sum is 31.

The square root of 56172352 is about 7494.8216789994. The cubic root of 56172352 is about 382.9783316189.

The spelling of 56172352 in words is "fifty-six million, one hundred seventy-two thousand, three hundred fifty-two".