57016320 has 144 divisors (see below), whose sum is σ = 188742960. Its totient is φ = 14680064.

The previous prime is 57016319. The next prime is 57016327. The reversal of 57016320 is 2361075.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57016327) 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, 1966066 + ... + 1966094.

It is an arithmetic number, because the mean of its divisors is an integer number (1310715).

Almost surely, 2^57016320 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 57016320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94371480).

57016320 is an abundant number, since it is smaller than the sum of its proper divisors (131726640).

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

57016320 is an frugal number, since it uses more digits than its factorization.

57016320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71 (or 39 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 24.

The square root of 57016320 is about 7550.9151763213. The cubic root of 57016320 is about 384.8868391775.

Adding to 57016320 its reverse (2361075), we get a palindrome (59377395).

It can be divided in two parts, 5701 and 6320, that added together give a palindrome (12021).

The spelling of 57016320 in words is "fifty-seven million, sixteen thousand, three hundred twenty".