57488780 has 24 divisors (see below), whose sum is σ = 121838640. Its totient is φ = 22783680.

The previous prime is 57488777. The next prime is 57488791. The reversal of 57488780 is 8788475.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11006 + ... + 15365.

It is an arithmetic number, because the mean of its divisors is an integer number (5076610).

Almost surely, 2^57488780 is an apocalyptic number.

It is an amenable number.

57488780 is an abundant number, since it is smaller than the sum of its proper divisors (64349860).

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

57488780 is a wasteful number, since it uses less digits than its factorization.

57488780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26489 (or 26487 counting only the distinct ones).

The product of its (nonzero) digits is 501760, while the sum is 47.

The square root of 57488780 is about 7582.1355830663. The cubic root of 57488780 is about 385.9470248650.

The spelling of 57488780 in words is "fifty-seven million, four hundred eighty-eight thousand, seven hundred eighty".