57900066 has 48 divisors (see below), whose sum is σ = 139371840. Its totient is φ = 15970080.

The previous prime is 57900043. The next prime is 57900067. The reversal of 57900066 is 66000975.

It is a super-3 number, since 3×57900066³ (a number of 24 digits) contains 333 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (57900067) 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, 5131 + ... + 11921.

It is an arithmetic number, because the mean of its divisors is an integer number (2903580).

Almost surely, 2^57900066 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57900066, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69685920).

57900066 is an abundant number, since it is smaller than the sum of its proper divisors (81471774).

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

57900066 is a wasteful number, since it uses less digits than its factorization.

57900066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6839 (or 6832 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 33.

The square root of 57900066 is about 7609.2092887500. The cubic root of 57900066 is about 386.8652189078.

The spelling of 57900066 in words is "fifty-seven million, nine hundred thousand, sixty-six".