57521601 has 6 divisors (see below), whose sum is σ = 83086770. Its totient is φ = 38347728.

The previous prime is 57521579. The next prime is 57521609. The reversal of 57521601 is 10612575.

57521601 is a `hidden beast` number, since 5 + 7 + 52 + 1 + 601 = 666.

It can be written as a sum of positive squares in only one way, i.e., 45968400 + 11553201 = 6780^2 + 3399^2 .

It is not a de Polignac number, because 57521601 - 2⁷ = 57521473 is a prime.

It is not an unprimeable number, because it can be changed into a prime (57521609) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3195636 + ... + 3195653.

It is an arithmetic number, because the mean of its divisors is an integer number (13847795).

Almost surely, 2^57521601 is an apocalyptic number.

It is an amenable number.

57521601 is a deficient number, since it is larger than the sum of its proper divisors (25565169).

57521601 is a wasteful number, since it uses less digits than its factorization.

57521601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6391295 (or 6391292 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 27.

The square root of 57521601 is about 7584.2996380681. The cubic root of 57521601 is about 386.0204580779.

The spelling of 57521601 in words is "fifty-seven million, five hundred twenty-one thousand, six hundred one".