57127716 has 18 divisors (see below), whose sum is σ = 144406262. Its totient is φ = 19042560.

The previous prime is 57127711. The next prime is 57127727. The reversal of 57127716 is 61772175.

57127716 is a `hidden beast` number, since 571 + 2 + 77 + 16 = 666.

It can be written as a sum of positive squares in only one way, i.e., 50126400 + 7001316 = 7080^2 + 2646^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 1586881 = 57127716 / (5 + 7 + 1 + 2 + 7 + 7 + 1 + 6).

It is not an unprimeable number, because it can be changed into a prime (57127711) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 793405 + ... + 793476.

Almost surely, 2^57127716 is an apocalyptic number.

It is an amenable number.

57127716 is an abundant number, since it is smaller than the sum of its proper divisors (87278546).

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

57127716 is a wasteful number, since it uses less digits than its factorization.

57127716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1586891 (or 1586886 counting only the distinct ones).

The product of its digits is 20580, while the sum is 36.

The square root of 57127716 is about 7558.2879013703. The cubic root of 57127716 is about 385.1373344875.

The spelling of 57127716 in words is "fifty-seven million, one hundred twenty-seven thousand, seven hundred sixteen".