57066872 has 16 divisors (see below), whose sum is σ = 107448000. Its totient is φ = 28414080.

The previous prime is 57066871. The next prime is 57066901. The reversal of 57066872 is 27866075.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57066871) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12872 + ... + 16727.

It is an arithmetic number, because the mean of its divisors is an integer number (6715500).

Almost surely, 2^57066872 is an apocalyptic number.

It is an amenable number.

57066872 is a deficient number, since it is larger than the sum of its proper divisors (50381128).

57066872 is a wasteful number, since it uses less digits than its factorization.

57066872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29846 (or 29842 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 41.

The square root of 57066872 is about 7554.2618434894. The cubic root of 57066872 is about 385.0005554611. Note that the first 3 decimals are identical.

The spelling of 57066872 in words is "fifty-seven million, sixty-six thousand, eight hundred seventy-two".