57113500 has 48 divisors (see below), whose sum is σ = 126060480. Its totient is φ = 22603200.

The previous prime is 57113491. The next prime is 57113513. The reversal of 57113500 is 531175.

It is a hoax number, since the sum of its digits (22) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50946 + ... + 52054.

It is an arithmetic number, because the mean of its divisors is an integer number (2626260).

Almost surely, 2^57113500 is an apocalyptic number.

57113500 is a gapful number since it is divisible by the number (50) 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 57113500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63030240).

57113500 is an abundant number, since it is smaller than the sum of its proper divisors (68946980).

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

57113500 is a wasteful number, since it uses less digits than its factorization.

57113500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1231 (or 1219 counting only the distinct ones).

The product of its (nonzero) digits is 525, while the sum is 22.

The square root of 57113500 is about 7557.3474182414. The cubic root of 57113500 is about 385.1053852170.

Adding to 57113500 its reverse (531175), we get a palindrome (57644675).

The spelling of 57113500 in words is "fifty-seven million, one hundred thirteen thousand, five hundred".