57309268 has 6 divisors (see below), whose sum is σ = 100291226. Its totient is φ = 28654632.

The previous prime is 57309253. The next prime is 57309277. The reversal of 57309268 is 86290375.

57309268 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 28708164 + 28601104 = 5358^2 + 5348^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 57309268.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 7163655 + ... + 7163662.

Almost surely, 2^57309268 is an apocalyptic number.

It is an amenable number.

57309268 is a deficient number, since it is larger than the sum of its proper divisors (42981958).

57309268 is a wasteful number, since it uses less digits than its factorization.

57309268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14327321 (or 14327319 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 57309268 is about 7570.2885017679. The cubic root of 57309268 is about 385.5448921350.

The spelling of 57309268 in words is "fifty-seven million, three hundred nine thousand, two hundred sixty-eight".