56930280 has 256 divisors, whose sum is σ = 205286400. Its totient is φ = 12472320.

The previous prime is 56930249. The next prime is 56930299. The reversal of 56930280 is 8203965.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 964891 + ... + 964949.

It is an arithmetic number, because the mean of its divisors is an integer number (801900).

Almost surely, 2^56930280 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 56930280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102643200).

56930280 is an abundant number, since it is smaller than the sum of its proper divisors (148356120).

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

56930280 is a wasteful number, since it uses less digits than its factorization.

56930280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144 (or 140 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 56930280 is about 7545.2157026821. The cubic root of 56930280 is about 384.6931382905.

The spelling of 56930280 in words is "fifty-six million, nine hundred thirty thousand, two hundred eighty".