57516396 has 72 divisors (see below), whose sum is σ = 161547120. Its totient is φ = 15861888.

The previous prime is 57516341. The next prime is 57516419. The reversal of 57516396 is 69361575.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15366 + ... + 18738.

It is an arithmetic number, because the mean of its divisors is an integer number (2243710).

Almost surely, 2^57516396 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 57516396, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80773560).

57516396 is an abundant number, since it is smaller than the sum of its proper divisors (104030724).

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

57516396 is a wasteful number, since it uses less digits than its factorization.

57516396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3423 (or 3414 counting only the distinct ones).

The product of its digits is 170100, while the sum is 42.

The square root of 57516396 is about 7583.9564872169. The cubic root of 57516396 is about 386.0088143530.

The spelling of 57516396 in words is "fifty-seven million, five hundred sixteen thousand, three hundred ninety-six".