56238720 has 128 divisors (see below), whose sum is σ = 189915840. Its totient is φ = 14106624.

The previous prime is 56238697. The next prime is 56238731. The reversal of 56238720 is 2783265.

It is a tau number, because it is divible by the number of its divisors (128).

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, 31779 + ... + 33501.

Almost surely, 2^56238720 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 56238720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94957920).

56238720 is an abundant number, since it is smaller than the sum of its proper divisors (133677120).

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

56238720 is a wasteful number, since it uses less digits than its factorization.

56238720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1762 (or 1750 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 56238720 is about 7499.2479622960. The cubic root of 56238720 is about 383.1291027204.

The spelling of 56238720 in words is "fifty-six million, two hundred thirty-eight thousand, seven hundred twenty".