57513492 has 18 divisors (see below), whose sum is σ = 145381418. Its totient is φ = 19171152.

The previous prime is 57513481. The next prime is 57513493. The reversal of 57513492 is 29431575.

57513492 is a `hidden beast` number, since 57 + 513 + 4 + 92 = 666.

57513492 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 38118276 + 19395216 = 6174^2 + 4404^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 1597597 = 57513492 / (5 + 7 + 5 + 1 + 3 + 4 + 9 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57513493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 798763 + ... + 798834.

Almost surely, 2^57513492 is an apocalyptic number.

It is an amenable number.

57513492 is an abundant number, since it is smaller than the sum of its proper divisors (87867926).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57513492 is a wasteful number, since it uses less digits than its factorization.

57513492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1597607 (or 1597602 counting only the distinct ones).

The product of its digits is 37800, while the sum is 36.

The square root of 57513492 is about 7583.7650280055. The cubic root of 57513492 is about 386.0023177217.

The spelling of 57513492 in words is "fifty-seven million, five hundred thirteen thousand, four hundred ninety-two".