57130690 has 8 divisors (see below), whose sum is σ = 102835260. Its totient is φ = 22852272.

The previous prime is 57130681. The next prime is 57130721. The reversal of 57130690 is 9603175.

It can be written as a sum of positive squares in 2 ways, for example, as 51365889 + 5764801 = 7167^2 + 2401^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×57130690² = 6527831479752200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2856525 + ... + 2856544.

Almost surely, 2^57130690 is an apocalyptic number.

57130690 is a deficient number, since it is larger than the sum of its proper divisors (45704570).

57130690 is a wasteful number, since it uses less digits than its factorization.

57130690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5713076.

The product of its (nonzero) digits is 5670, while the sum is 31.

The square root of 57130690 is about 7558.4846364863. The cubic root of 57130690 is about 385.1440176333.

The spelling of 57130690 in words is "fifty-seven million, one hundred thirty thousand, six hundred ninety".