57387066 has 16 divisors (see below), whose sum is σ = 125208288. Its totient is φ = 17390000.

The previous prime is 57387061. The next prime is 57387067. The reversal of 57387066 is 66078375.

It is not an unprimeable number, because it can be changed into a prime (57387061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 434685 + ... + 434816.

It is an arithmetic number, because the mean of its divisors is an integer number (7825518).

Almost surely, 2^57387066 is an apocalyptic number.

57387066 is an abundant number, since it is smaller than the sum of its proper divisors (67821222).

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

57387066 is a wasteful number, since it uses less digits than its factorization.

57387066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 869517.

The product of its (nonzero) digits is 211680, while the sum is 42.

The square root of 57387066 is about 7575.4251365847. The cubic root of 57387066 is about 385.7192738136.

The spelling of 57387066 in words is "fifty-seven million, three hundred eighty-seven thousand, sixty-six".