57163085 has 8 divisors (see below), whose sum is σ = 78395136. Its totient is φ = 39197520.

The previous prime is 57163069. The next prime is 57163091. The reversal of 57163085 is 58036175.

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

It is not a de Polignac number, because 57163085 - 2⁴ = 57163069 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35), and also a Moran number because the ratio is a prime number: 1633231 = 57163085 / (5 + 7 + 1 + 6 + 3 + 0 + 8 + 5).

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 816581 + ... + 816650.

It is an arithmetic number, because the mean of its divisors is an integer number (9799392).

Almost surely, 2^57163085 is an apocalyptic number.

It is an amenable number.

57163085 is a deficient number, since it is larger than the sum of its proper divisors (21232051).

57163085 is a wasteful number, since it uses less digits than its factorization.

57163085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1633243.

The product of its (nonzero) digits is 25200, while the sum is 35.

The square root of 57163085 is about 7560.6272887903. The cubic root of 57163085 is about 385.2168003644.

The spelling of 57163085 in words is "fifty-seven million, one hundred sixty-three thousand, eighty-five".