57066288 has 40 divisors (see below), whose sum is σ = 152180736. Its totient is φ = 18408000.

The previous prime is 57066259. The next prime is 57066337. The reversal of 57066288 is 88266075.

It is a super-2 number, since 2×57066288² = 6513122452197888, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17688 + ... + 20663.

Almost surely, 2^57066288 is an apocalyptic number.

It is an amenable number.

57066288 is an abundant number, since it is smaller than the sum of its proper divisors (95114448).

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

57066288 is a wasteful number, since it uses less digits than its factorization.

57066288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38393 (or 38387 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 42.

The square root of 57066288 is about 7554.2231897132. The cubic root of 57066288 is about 384.9992421416. Note that the first 3 decimals are identical.

The spelling of 57066288 in words is "fifty-seven million, sixty-six thousand, two hundred eighty-eight".