57398013 has 12 divisors (see below), whose sum is σ = 83050240. Its totient is φ = 38199816.

The previous prime is 57398009. The next prime is 57398021. The reversal of 57398013 is 31089375.

57398013 is a `hidden beast` number, since 573 + 9 + 80 + 1 + 3 = 666.

It is not a de Polignac number, because 57398013 - 2² = 57398009 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57398023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 420 + ... + 10722.

Almost surely, 2^57398013 is an apocalyptic number.

It is an amenable number.

57398013 is a deficient number, since it is larger than the sum of its proper divisors (25652227).

57398013 is a wasteful number, since it uses less digits than its factorization.

57398013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10928 (or 10925 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 57398013 is about 7576.1476358371. The cubic root of 57398013 is about 385.7437985060.

The spelling of 57398013 in words is "fifty-seven million, three hundred ninety-eight thousand, thirteen".