57065544 has 96 divisors (see below), whose sum is σ = 164087040. Its totient is φ = 17884800.

The previous prime is 57065537. The next prime is 57065557. The reversal of 57065544 is 44556075.

It is a happy number.

57065544 is a `hidden beast` number, since 57 + 0 + 65 + 544 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 57065499 and 57065508.

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, 82239 + ... + 82929.

It is an arithmetic number, because the mean of its divisors is an integer number (1709240).

Almost surely, 2^57065544 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 57065544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82043520).

57065544 is an abundant number, since it is smaller than the sum of its proper divisors (107021496).

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

57065544 is a wasteful number, since it uses less digits than its factorization.

57065544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 771 (or 764 counting only the distinct ones).

The product of its (nonzero) digits is 84000, while the sum is 36.

The square root of 57065544 is about 7554.1739455747. The cubic root of 57065544 is about 384.9975689957.

The spelling of 57065544 in words is "fifty-seven million, sixty-five thousand, five hundred forty-four".