57643572 has 48 divisors (see below), whose sum is σ = 154869120. Its totient is φ = 16346112.

The previous prime is 57643571. The next prime is 57643577. The reversal of 57643572 is 27534675.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 57643572.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57643571) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9004 + ... + 14012.

It is an arithmetic number, because the mean of its divisors is an integer number (3226440).

Almost surely, 2^57643572 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57643572, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77434560).

57643572 is an abundant number, since it is smaller than the sum of its proper divisors (97225548).

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

57643572 is a wasteful number, since it uses less digits than its factorization.

57643572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5160 (or 5158 counting only the distinct ones).

The product of its digits is 176400, while the sum is 39.

The square root of 57643572 is about 7592.3363992911. The cubic root of 57643572 is about 386.2931096299.

The spelling of 57643572 in words is "fifty-seven million, six hundred forty-three thousand, five hundred seventy-two".