56130720 has 96 divisors (see below), whose sum is σ = 177847488. Its totient is φ = 14880768.

The previous prime is 56130713. The next prime is 56130721. The reversal of 56130720 is 2703165.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (56130721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 161587 + ... + 161933.

It is an arithmetic number, because the mean of its divisors is an integer number (1852578).

Almost surely, 2^56130720 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 56130720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88923744).

56130720 is an abundant number, since it is smaller than the sum of its proper divisors (121716768).

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

56130720 is a wasteful number, since it uses less digits than its factorization.

56130720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 702 (or 694 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 24.

The square root of 56130720 is about 7492.0437799041. The cubic root of 56130720 is about 382.8836937532.

Adding to 56130720 its reverse (2703165), we get a palindrome (58833885).

The spelling of 56130720 in words is "fifty-six million, one hundred thirty thousand, seven hundred twenty".