57311245 has 4 divisors (see below), whose sum is σ = 68773500. Its totient is φ = 45848992.

The previous prime is 57311237. The next prime is 57311273. The reversal of 57311245 is 54211375.

It is a happy number.

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 14722569 + 42588676 = 3837^2 + 6526^2 .

It is a cyclic number.

It is not a de Polignac number, because 57311245 - 2³ = 57311237 is a prime.

It is a congruent number.

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, 5731120 + ... + 5731129.

It is an arithmetic number, because the mean of its divisors is an integer number (17193375).

Almost surely, 2^57311245 is an apocalyptic number.

It is an amenable number.

57311245 is a deficient number, since it is larger than the sum of its proper divisors (11462255).

57311245 is a wasteful number, since it uses less digits than its factorization.

57311245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11462254.

The product of its digits is 4200, while the sum is 28.

The square root of 57311245 is about 7570.4190769072. The cubic root of 57311245 is about 385.5493254696.

The spelling of 57311245 in words is "fifty-seven million, three hundred eleven thousand, two hundred forty-five".