57502561 has 4 divisors (see below), whose sum is σ = 57548800. Its totient is φ = 57456324.

The previous prime is 57502559. The next prime is 57502589. The reversal of 57502561 is 16520575.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 57502561 - 2¹ = 57502559 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57502591) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21201 + ... + 23758.

It is an arithmetic number, because the mean of its divisors is an integer number (14387200).

Almost surely, 2^57502561 is an apocalyptic number.

It is an amenable number.

57502561 is a deficient number, since it is larger than the sum of its proper divisors (46239).

57502561 is a wasteful number, since it uses less digits than its factorization.

57502561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46238.

The product of its (nonzero) digits is 10500, while the sum is 31.

The square root of 57502561 is about 7583.0443095105. The cubic root of 57502561 is about 385.9778616707.

The spelling of 57502561 in words is "fifty-seven million, five hundred two thousand, five hundred sixty-one".