57568145 has 4 divisors (see below), whose sum is σ = 69081780. Its totient is φ = 46054512.

The previous prime is 57568139. The next prime is 57568153. The reversal of 57568145 is 54186575.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 16248961 + 41319184 = 4031^2 + 6428^2 .

It is a cyclic number.

It is not a de Polignac number, because 57568145 - 2⁸ = 57567889 is a prime.

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, 5756810 + ... + 5756819.

It is an arithmetic number, because the mean of its divisors is an integer number (17270445).

Almost surely, 2^57568145 is an apocalyptic number.

It is an amenable number.

57568145 is a deficient number, since it is larger than the sum of its proper divisors (11513635).

57568145 is a wasteful number, since it uses less digits than its factorization.

57568145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11513634.

The product of its digits is 168000, while the sum is 41.

The square root of 57568145 is about 7587.3674617749. The cubic root of 57568145 is about 386.1245470465.

The spelling of 57568145 in words is "fifty-seven million, five hundred sixty-eight thousand, one hundred forty-five".