57101998 has 8 divisors (see below), whose sum is σ = 85995000. Its totient is φ = 28437000.

The previous prime is 57101981. The next prime is 57102013. The reversal of 57101998 is 89910175.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 57101998.

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, 56373 + ... + 57376.

It is an arithmetic number, because the mean of its divisors is an integer number (10749375).

Almost surely, 2^57101998 is an apocalyptic number.

57101998 is a deficient number, since it is larger than the sum of its proper divisors (28893002).

57101998 is a wasteful number, since it uses less digits than its factorization.

57101998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114002.

The product of its (nonzero) digits is 22680, while the sum is 40.

The square root of 57101998 is about 7556.5863986327. The cubic root of 57101998 is about 385.0795315541.

The spelling of 57101998 in words is "fifty-seven million, one hundred one thousand, nine hundred ninety-eight".