57257930 has 16 divisors (see below), whose sum is σ = 106389504. Its totient is φ = 22164240.

The previous prime is 57257927. The next prime is 57257933. The reversal of 57257930 is 3975275.

It is an interprime number because it is at equal distance from previous prime (57257927) and next prime (57257933).

It is not an unprimeable number, because it can be changed into a prime (57257933) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92042 + ... + 92661.

It is an arithmetic number, because the mean of its divisors is an integer number (6649344).

Almost surely, 2^57257930 is an apocalyptic number.

57257930 is a deficient number, since it is larger than the sum of its proper divisors (49131574).

57257930 is a wasteful number, since it uses less digits than its factorization.

57257930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184741.

The product of its (nonzero) digits is 66150, while the sum is 38.

The square root of 57257930 is about 7566.8969862157. The cubic root of 57257930 is about 385.4297332345.

The spelling of 57257930 in words is "fifty-seven million, two hundred fifty-seven thousand, nine hundred thirty".