57127664 has 20 divisors (see below), whose sum is σ = 120747480. Its totient is φ = 25967040.

The previous prime is 57127657. The next prime is 57127669. The reversal of 57127664 is 46672175.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57127669) 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, 162119 + ... + 162470.

It is an arithmetic number, because the mean of its divisors is an integer number (6037374).

Almost surely, 2^57127664 is an apocalyptic number.

It is an amenable number.

57127664 is an abundant number, since it is smaller than the sum of its proper divisors (63619816).

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

57127664 is a wasteful number, since it uses less digits than its factorization.

57127664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324608 (or 324602 counting only the distinct ones).

The product of its digits is 70560, while the sum is 38.

The square root of 57127664 is about 7558.2844614370. The cubic root of 57127664 is about 385.1372176315.

It can be divided in two parts, 57 and 127664, that added together give a palindrome (127721).

The spelling of 57127664 in words is "fifty-seven million, one hundred twenty-seven thousand, six hundred sixty-four".