56252720 has 40 divisors (see below), whose sum is σ = 132007920. Its totient is φ = 22291200.

The previous prime is 56252701. The next prime is 56252737. The reversal of 56252720 is 2725265.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5495 + ... + 11945.

It is an arithmetic number, because the mean of its divisors is an integer number (3300198).

Almost surely, 2^56252720 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 56252720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66003960).

56252720 is an abundant number, since it is smaller than the sum of its proper divisors (75755200).

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

56252720 is a wasteful number, since it uses less digits than its factorization.

56252720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6573 (or 6567 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 56252720 is about 7500.1813311413. The cubic root of 56252720 is about 383.1608919836.

Adding to 56252720 its reverse (2725265), we get a palindrome (58977985).

The spelling of 56252720 in words is "fifty-six million, two hundred fifty-two thousand, seven hundred twenty".