57616572 has 48 divisors (see below), whose sum is σ = 145424160. Its totient is φ = 17649408.

The previous prime is 57616567. The next prime is 57616589. The reversal of 57616572 is 27561675.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 57616572.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41278 + ... + 42650.

It is an arithmetic number, because the mean of its divisors is an integer number (3029670).

Almost surely, 2^57616572 is an apocalyptic number.

57616572 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57616572, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72712080).

57616572 is an abundant number, since it is smaller than the sum of its proper divisors (87807588).

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

57616572 is a wasteful number, since it uses less digits than its factorization.

57616572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1662 (or 1660 counting only the distinct ones).

The product of its digits is 88200, while the sum is 39.

The square root of 57616572 is about 7590.5580822493. The cubic root of 57616572 is about 386.2327875364.

The spelling of 57616572 in words is "fifty-seven million, six hundred sixteen thousand, five hundred seventy-two".