56032400 has 60 divisors (see below), whose sum is σ = 135800832. Its totient is φ = 22216320.

The previous prime is 56032399. The next prime is 56032411. The reversal of 56032400 is 423065.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 50249 + ... + 51351.

Almost surely, 2^56032400 is an apocalyptic number.

56032400 is a gapful number since it is divisible by the number (50) 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 56032400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67900416).

56032400 is an abundant number, since it is smaller than the sum of its proper divisors (79768432).

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

56032400 is a wasteful number, since it uses less digits than its factorization.

56032400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1248 (or 1237 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 56032400 is about 7485.4792765727. The cubic root of 56032400 is about 382.6600068177.

Adding to 56032400 its reverse (423065), we get a palindrome (56455465).

The spelling of 56032400 in words is "fifty-six million, thirty-two thousand, four hundred".