57130251 has 16 divisors (see below), whose sum is σ = 81244800. Its totient is φ = 35584128.

The previous prime is 57130247. The next prime is 57130267. The reversal of 57130251 is 15203175.

It is not a de Polignac number, because 57130251 - 2² = 57130247 is a prime.

It is not an unprimeable number, because it can be changed into a prime (57130291) 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, 3060 + ... + 11118.

It is an arithmetic number, because the mean of its divisors is an integer number (5077800).

Almost surely, 2^57130251 is an apocalyptic number.

57130251 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

57130251 is a deficient number, since it is larger than the sum of its proper divisors (24114549).

57130251 is a wasteful number, since it uses less digits than its factorization.

57130251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8218.

The product of its (nonzero) digits is 1050, while the sum is 24.

The square root of 57130251 is about 7558.4555962181. The cubic root of 57130251 is about 385.1430311310.

The spelling of 57130251 in words is "fifty-seven million, one hundred thirty thousand, two hundred fifty-one".