57109268 has 6 divisors (see below), whose sum is σ = 99941226. Its totient is φ = 28554632.

The previous prime is 57109267. The next prime is 57109303. The reversal of 57109268 is 86290175.

It can be written as a sum of positive squares in only one way, i.e., 49168144 + 7941124 = 7012^2 + 2818^2 .

It is a super-2 number, since 2×57109268² = 6522936982991648, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57109267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7138655 + ... + 7138662.

It is an arithmetic number, because the mean of its divisors is an integer number (16656871).

Almost surely, 2^57109268 is an apocalyptic number.

It is an amenable number.

57109268 is a deficient number, since it is larger than the sum of its proper divisors (42831958).

57109268 is a wasteful number, since it uses less digits than its factorization.

57109268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14277321 (or 14277319 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 38.

The square root of 57109268 is about 7557.0674206335. The cubic root of 57109268 is about 385.0958731270.

The spelling of 57109268 in words is "fifty-seven million, one hundred nine thousand, two hundred sixty-eight".