57561382 has 16 divisors (see below), whose sum is σ = 87318000. Its totient is φ = 28457440.

The previous prime is 57561379. The next prime is 57561407. The reversal of 57561382 is 28316575.

57561382 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 7 ways as a sum of consecutive naturals, for example, 124632 + ... + 125092.

It is an arithmetic number, because the mean of its divisors is an integer number (5457375).

Almost surely, 2^57561382 is an apocalyptic number.

57561382 is a deficient number, since it is larger than the sum of its proper divisors (29756618).

57561382 is a wasteful number, since it uses less digits than its factorization.

57561382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1031.

The product of its digits is 50400, while the sum is 37.

The square root of 57561382 is about 7586.9217736840. The cubic root of 57561382 is about 386.1094260533.

The spelling of 57561382 in words is "fifty-seven million, five hundred sixty-one thousand, three hundred eighty-two".