57207345 has 24 divisors (see below), whose sum is σ = 99118656. Its totient is φ = 28162368.

The previous prime is 57207317. The next prime is 57207349. The reversal of 57207345 is 54370275.

57207345 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 57207345 - 2⁵ = 57207313 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (57207349) 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 23 ways as a sum of consecutive naturals, for example, 8749 + ... + 13818.

It is an arithmetic number, because the mean of its divisors is an integer number (4129944).

Almost surely, 2^57207345 is an apocalyptic number.

It is an amenable number.

57207345 is a deficient number, since it is larger than the sum of its proper divisors (41911311).

57207345 is a wasteful number, since it uses less digits than its factorization.

57207345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22601 (or 22588 counting only the distinct ones).

The product of its (nonzero) digits is 29400, while the sum is 33.

The square root of 57207345 is about 7563.5537282418. The cubic root of 57207345 is about 385.3161960792.

The spelling of 57207345 in words is "fifty-seven million, two hundred seven thousand, three hundred forty-five".