57081120 has 96 divisors (see below), whose sum is σ = 181621440. Its totient is φ = 15068160.

The previous prime is 57081107. The next prime is 57081127. The reversal of 57081120 is 2118075.

It is a tau number, because it is divible by the number of its divisors (96).

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

It is not an unprimeable number, because it can be changed into a prime (57081127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51775 + ... + 52865.

It is an arithmetic number, because the mean of its divisors is an integer number (1891890).

Almost surely, 2^57081120 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 57081120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90810720).

57081120 is an abundant number, since it is smaller than the sum of its proper divisors (124540320).

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

57081120 is a wasteful number, since it uses less digits than its factorization.

57081120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1218 (or 1210 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 24.

The square root of 57081120 is about 7555.2048284610. The cubic root of 57081120 is about 385.0325940809.

Adding to 57081120 its reverse (2118075), we get a palindrome (59199195).

The spelling of 57081120 in words is "fifty-seven million, eighty-one thousand, one hundred twenty".