57513808 has 40 divisors (see below), whose sum is σ = 122179680. Its totient is φ = 26010240.

The previous prime is 57513803. The next prime is 57513811. The reversal of 57513808 is 80831575.

It is a super-2 number, since 2×57513808² = 6615676221321728, which contains 22 as substring.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57513803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39591 + ... + 41017.

It is an arithmetic number, because the mean of its divisors is an integer number (3054492).

Almost surely, 2^57513808 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 57513808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61089840).

57513808 is an abundant number, since it is smaller than the sum of its proper divisors (64665872).

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

57513808 is a wasteful number, since it uses less digits than its factorization.

57513808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1675 (or 1669 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 37.

The square root of 57513808 is about 7583.7858619558. The cubic root of 57513808 is about 386.0030246660.

It can be divided in two parts, 5751 and 3808, that added together give a palindrome (9559).

The spelling of 57513808 in words is "fifty-seven million, five hundred thirteen thousand, eight hundred eight".