57634561 has 4 divisors (see below), whose sum is σ = 59040324. Its totient is φ = 56228800.

The previous prime is 57634553. The next prime is 57634589. The reversal of 57634561 is 16543675.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 16353936 + 41280625 = 4044^2 + 6425^2 .

It is a cyclic number.

It is not a de Polignac number, because 57634561 - 2³ = 57634553 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 57634561.

It is not an unprimeable number, because it can be changed into a prime (57635561) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 702820 + ... + 702901.

It is an arithmetic number, because the mean of its divisors is an integer number (14760081).

Almost surely, 2^57634561 is an apocalyptic number.

It is an amenable number.

57634561 is a deficient number, since it is larger than the sum of its proper divisors (1405763).

57634561 is a wasteful number, since it uses less digits than its factorization.

57634561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1405762.

The product of its digits is 75600, while the sum is 37.

The square root of 57634561 is about 7591.7429487569. The cubic root of 57634561 is about 386.2729797844.

The spelling of 57634561 in words is "fifty-seven million, six hundred thirty-four thousand, five hundred sixty-one".