57118266 has 48 divisors (see below), whose sum is σ = 132882984. Its totient is φ = 17667072.

The previous prime is 57118261. The next prime is 57118273. The reversal of 57118266 is 66281175.

57118266 is a `hidden beast` number, since 571 + 1 + 82 + 6 + 6 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 53714241 + 3404025 = 7329^2 + 1845^2 .

It is a super-3 number, since 3×57118266³ (a number of 24 digits) contains 333 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 57118266.

It is not an unprimeable number, because it can be changed into a prime (57118261) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21060 + ... + 23616.

Almost surely, 2^57118266 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57118266, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66441492).

57118266 is an abundant number, since it is smaller than the sum of its proper divisors (75764718).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57118266 is a wasteful number, since it uses less digits than its factorization.

57118266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2655 (or 2652 counting only the distinct ones).

The product of its digits is 20160, while the sum is 36.

The square root of 57118266 is about 7557.6627339410. The cubic root of 57118266 is about 385.1160969939.

The spelling of 57118266 in words is "fifty-seven million, one hundred eighteen thousand, two hundred sixty-six".