57065994 has 12 divisors (see below), whose sum is σ = 123643026. Its totient is φ = 19021992.

The previous prime is 57065993. The next prime is 57066007. The reversal of 57065994 is 49956075.

It is a happy number.

57065994 is a `hidden beast` number, since 57 + 0 + 6 + 599 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 44555625 + 12510369 = 6675^2 + 3537^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (57065993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1585149 + ... + 1585184.

Almost surely, 2^57065994 is an apocalyptic number.

57065994 is an abundant number, since it is smaller than the sum of its proper divisors (66577032).

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

57065994 is a wasteful number, since it uses less digits than its factorization.

57065994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3170341 (or 3170338 counting only the distinct ones).

The product of its (nonzero) digits is 340200, while the sum is 45.

The square root of 57065994 is about 7554.2037303742. The cubic root of 57065994 is about 384.9985809809.

It can be divided in two parts, 570 and 65994, that added together give a square (66564 = 258²).

The spelling of 57065994 in words is "fifty-seven million, sixty-five thousand, nine hundred ninety-four".