57120566 has 8 divisors (see below), whose sum is σ = 85822464. Its totient is φ = 28513080.

The previous prime is 57120533. The next prime is 57120571. The reversal of 57120566 is 66502175.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22070 + ... + 24521.

It is an arithmetic number, because the mean of its divisors is an integer number (10727808).

Almost surely, 2^57120566 is an apocalyptic number.

57120566 is a deficient number, since it is larger than the sum of its proper divisors (28701898).

57120566 is a wasteful number, since it uses less digits than its factorization.

57120566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47206.

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 57120566 is about 7557.8148958545. The cubic root of 57120566 is about 385.1212661233.

The spelling of 57120566 in words is "fifty-seven million, one hundred twenty thousand, five hundred sixty-six".