57457689 has 4 divisors (see below), whose sum is σ = 76610256. Its totient is φ = 38305124.

The previous prime is 57457679. The next prime is 57457709. The reversal of 57457689 is 98675475.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 57457689 - 2⁹ = 57457177 is a prime.

It is not an unprimeable number, because it can be changed into a prime (57457619) 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, 9576279 + ... + 9576284.

It is an arithmetic number, because the mean of its divisors is an integer number (19152564).

Almost surely, 2^57457689 is an apocalyptic number.

It is an amenable number.

57457689 is a deficient number, since it is larger than the sum of its proper divisors (19152567).

57457689 is a wasteful number, since it uses less digits than its factorization.

57457689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19152566.

The product of its digits is 2116800, while the sum is 51.

The square root of 57457689 is about 7580.0850259084. The cubic root of 57457689 is about 385.8774365455.

The spelling of 57457689 in words is "fifty-seven million, four hundred fifty-seven thousand, six hundred eighty-nine".