56530980 has 192 divisors, whose sum is σ = 198696960. Its totient is φ = 13219200.

The previous prime is 56530979. The next prime is 56530993. The reversal of 56530980 is 8903565.

56530980 is a `hidden beast` number, since 565 + 3 + 0 + 98 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 183987 + ... + 184293.

It is an arithmetic number, because the mean of its divisors is an integer number (1034880).

Almost surely, 2^56530980 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 56530980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99348480).

56530980 is an abundant number, since it is smaller than the sum of its proper divisors (142165980).

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

56530980 is a wasteful number, since it uses less digits than its factorization.

56530980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367 (or 359 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The square root of 56530980 is about 7518.7086657218. The cubic root of 56530980 is about 383.7916350049.

The spelling of 56530980 in words is "fifty-six million, five hundred thirty thousand, nine hundred eighty".