57345251 has 4 divisors (see below), whose sum is σ = 57401904. Its totient is φ = 57288600.

The previous prime is 57345179. The next prime is 57345289. The reversal of 57345251 is 15254375.

57345251 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57345251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57345851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26780 + ... + 28841.

It is an arithmetic number, because the mean of its divisors is an integer number (14350476).

Almost surely, 2^57345251 is an apocalyptic number.

57345251 is a deficient number, since it is larger than the sum of its proper divisors (56653).

57345251 is a wasteful number, since it uses less digits than its factorization.

57345251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56652.

The product of its digits is 21000, while the sum is 32.

The square root of 57345251 is about 7572.6647225399. The cubic root of 57345251 is about 385.6255664589.

The spelling of 57345251 in words is "fifty-seven million, three hundred forty-five thousand, two hundred fifty-one".