57284564 has 6 divisors (see below), whose sum is σ = 100247994. Its totient is φ = 28642280.

The previous prime is 57284561. The next prime is 57284569. The reversal of 57284564 is 46548275.

It can be written as a sum of positive squares in only one way, i.e., 56851600 + 432964 = 7540^2 + 658^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57284561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7160567 + ... + 7160574.

It is an arithmetic number, because the mean of its divisors is an integer number (16707999).

Almost surely, 2^57284564 is an apocalyptic number.

It is an amenable number.

57284564 is a deficient number, since it is larger than the sum of its proper divisors (42963430).

57284564 is a wasteful number, since it uses less digits than its factorization.

57284564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14321145 (or 14321143 counting only the distinct ones).

The product of its digits is 268800, while the sum is 41.

The square root of 57284564 is about 7568.6566839830. The cubic root of 57284564 is about 385.4894859140.

The spelling of 57284564 in words is "fifty-seven million, two hundred eighty-four thousand, five hundred sixty-four".