57561632 has 12 divisors (see below), whose sum is σ = 113324526. Its totient is φ = 28780800.

The previous prime is 57561631. The next prime is 57561661. The reversal of 57561632 is 23616575.

It can be written as a sum of positive squares in only one way, i.e., 51782416 + 5779216 = 7196^2 + 2404^2 .

It is a junction number, because it is equal to n+sod(n) for n = 57561592 and 57561601.

It is not an unprimeable number, because it can be changed into a prime (57561631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 899369 + ... + 899432.

Almost surely, 2^57561632 is an apocalyptic number.

It is an amenable number.

57561632 is a deficient number, since it is larger than the sum of its proper divisors (55762894).

57561632 is a wasteful number, since it uses less digits than its factorization.

57561632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1798811 (or 1798803 counting only the distinct ones).

The product of its digits is 37800, while the sum is 35.

The square root of 57561632 is about 7586.9382493862. The cubic root of 57561632 is about 386.1099850347.

The spelling of 57561632 in words is "fifty-seven million, five hundred sixty-one thousand, six hundred thirty-two".