57500109 has 12 divisors (see below), whose sum is σ = 85300956. Its totient is φ = 37297152.

The previous prime is 57500101. The next prime is 57500123. The reversal of 57500109 is 90100575.

57500109 is a `hidden beast` number, since 57 + 500 + 109 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 36542025 + 20958084 = 6045^2 + 4578^2 .

It is not a de Polignac number, because 57500109 - 2³ = 57500101 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57500101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 86004 + ... + 86669.

It is an arithmetic number, because the mean of its divisors is an integer number (7108413).

Almost surely, 2^57500109 is an apocalyptic number.

It is an amenable number.

57500109 is a deficient number, since it is larger than the sum of its proper divisors (27800847).

57500109 is a wasteful number, since it uses less digits than its factorization.

57500109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172716 (or 172713 counting only the distinct ones).

The product of its (nonzero) digits is 1575, while the sum is 27.

The square root of 57500109 is about 7582.8826312953. The cubic root of 57500109 is about 385.9723753576.

The spelling of 57500109 in words is "fifty-seven million, five hundred thousand, one hundred nine".