57027780 has 48 divisors (see below), whose sum is σ = 177421440. Its totient is φ = 15207264.

The previous prime is 57027749. The next prime is 57027781. The reversal of 57027780 is 8772075.

57027780 is a `hidden beast` number, since 570 + 2 + 7 + 7 + 80 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (57027781) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52264 + ... + 53343.

It is an arithmetic number, because the mean of its divisors is an integer number (3696280).

Almost surely, 2^57027780 is an apocalyptic number.

It is an amenable number.

57027780 is an abundant number, since it is smaller than the sum of its proper divisors (120393660).

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

57027780 is a wasteful number, since it uses less digits than its factorization.

57027780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105625 (or 105617 counting only the distinct ones).

The product of its (nonzero) digits is 27440, while the sum is 36.

The square root of 57027780 is about 7551.6739866072. The cubic root of 57027780 is about 384.9126242375.

The spelling of 57027780 in words is "fifty-seven million, twenty-seven thousand, seven hundred eighty".