57291632 has 20 divisors (see below), whose sum is σ = 117532656. Its totient is φ = 26960640.

The previous prime is 57291629. The next prime is 57291653. The reversal of 57291632 is 23619275.

57291632 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 57291592 and 57291601.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 105044 + ... + 105587.

Almost surely, 2^57291632 is an apocalyptic number.

It is an amenable number.

57291632 is an abundant number, since it is smaller than the sum of its proper divisors (60241024).

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

57291632 is a wasteful number, since it uses less digits than its factorization.

57291632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210656 (or 210650 counting only the distinct ones).

The product of its digits is 22680, while the sum is 35.

The square root of 57291632 is about 7569.1235952388. The cubic root of 57291632 is about 385.5053396766.

The spelling of 57291632 in words is "fifty-seven million, two hundred ninety-one thousand, six hundred thirty-two".