57416520 has 128 divisors (see below), whose sum is σ = 203731200. Its totient is φ = 12665856.

The previous prime is 57416519. The next prime is 57416539. The reversal of 57416520 is 2561475.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23182 + ... + 25538.

It is an arithmetic number, because the mean of its divisors is an integer number (1591650).

Almost surely, 2^57416520 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 57416520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101865600).

57416520 is an abundant number, since it is smaller than the sum of its proper divisors (146314680).

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

57416520 is a wasteful number, since it uses less digits than its factorization.

57416520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2407 (or 2403 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 57416520 is about 7577.3689365109. The cubic root of 57416520 is about 385.7852528640.

Adding to 57416520 its reverse (2561475), we get a palindrome (59977995).

The spelling of 57416520 in words is "fifty-seven million, four hundred sixteen thousand, five hundred twenty".