57000099 has 32 divisors (see below), whose sum is σ = 87393600. Its totient is φ = 32735232.

The previous prime is 57000089. The next prime is 57000107. The reversal of 57000099 is 99000075.

It is a happy number.

It is not a de Polignac number, because 57000099 - 2⁵ = 57000067 is a prime.

It is a super-2 number, since 2×57000099² = 6498022572019602, which contains 22 as substring.

57000099 is a modest number, since divided by 99 gives 57 as remainder.

It is not an unprimeable number, because it can be changed into a prime (57000059) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 98499 + ... + 99075.

It is an arithmetic number, because the mean of its divisors is an integer number (2731050).

Almost surely, 2^57000099 is an apocalyptic number.

57000099 is a deficient number, since it is larger than the sum of its proper divisors (30393501).

57000099 is a wasteful number, since it uses less digits than its factorization.

57000099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 759.

The product of its (nonzero) digits is 2835, while the sum is 30.

The square root of 57000099 is about 7549.8409917031. The cubic root of 57000099 is about 384.8503359355.

The spelling of 57000099 in words is "fifty-seven million, ninety-nine", and thus it is an aban number and an uban number.