56112780 has 24 divisors (see below), whose sum is σ = 157115952. Its totient is φ = 14963392.

The previous prime is 56112779. The next prime is 56112781. The reversal of 56112780 is 8721165.

It is an interprime number because it is at equal distance from previous prime (56112779) and next prime (56112781).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (56112781) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 467547 + ... + 467666.

It is an arithmetic number, because the mean of its divisors is an integer number (6546498).

Almost surely, 2^56112780 is an apocalyptic number.

It is an amenable number.

56112780 is an abundant number, since it is smaller than the sum of its proper divisors (101003172).

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

56112780 is a wasteful number, since it uses less digits than its factorization.

56112780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 935225 (or 935223 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 30.

The square root of 56112780 is about 7490.8464141244. The cubic root of 56112780 is about 382.8428981164.

The spelling of 56112780 in words is "fifty-six million, one hundred twelve thousand, seven hundred eighty".