56779480 has 16 divisors (see below), whose sum is σ = 127753920. Its totient is φ = 22711776.

The previous prime is 56779453. The next prime is 56779487. The reversal of 56779480 is 8497765.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 56779480.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56779487) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 709704 + ... + 709783.

It is an arithmetic number, because the mean of its divisors is an integer number (7984620).

Almost surely, 2^56779480 is an apocalyptic number.

It is an amenable number.

56779480 is an abundant number, since it is smaller than the sum of its proper divisors (70974440).

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

56779480 is a wasteful number, since it uses less digits than its factorization.

56779480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1419498 (or 1419494 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 46.

The square root of 56779480 is about 7535.2159889415. The cubic root of 56779480 is about 384.3531726209.

The spelling of 56779480 in words is "fifty-six million, seven hundred seventy-nine thousand, four hundred eighty".