57163898 has 16 divisors (see below), whose sum is σ = 94032576. Its totient is φ = 25847040.

The previous prime is 57163859. The next prime is 57163903. The reversal of 57163898 is 89836175.

It is a happy number.

It is a super-2 number, since 2×57163898² = 6535422469108808, which contains 22 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2486 + ... + 10977.

It is an arithmetic number, because the mean of its divisors is an integer number (5877036).

Almost surely, 2^57163898 is an apocalyptic number.

57163898 is a deficient number, since it is larger than the sum of its proper divisors (36868678).

57163898 is a wasteful number, since it uses less digits than its factorization.

57163898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13669.

The product of its digits is 362880, while the sum is 47.

The square root of 57163898 is about 7560.6810539792. The cubic root of 57163898 is about 385.2186266000.

The spelling of 57163898 in words is "fifty-seven million, one hundred sixty-three thousand, eight hundred ninety-eight".