57531898 has 8 divisors (see below), whose sum is σ = 86341140. Its totient is φ = 28751520.

The previous prime is 57531883. The next prime is 57531907. The reversal of 57531898 is 89813575.

It can be written as a sum of positive squares in 2 ways, for example, as 57198969 + 332929 = 7563^2 + 577^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1243 + ... + 10798.

Almost surely, 2^57531898 is an apocalyptic number.

57531898 is a deficient number, since it is larger than the sum of its proper divisors (28809242).

57531898 is a wasteful number, since it uses less digits than its factorization.

57531898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14432.

The product of its digits is 302400, while the sum is 46.

The square root of 57531898 is about 7584.9784442673. The cubic root of 57531898 is about 386.0434906745.

The spelling of 57531898 in words is "fifty-seven million, five hundred thirty-one thousand, eight hundred ninety-eight".