57725369321 has 4 divisors (see below), whose sum is σ = 57726298500. Its totient is φ = 57724440144.

The previous prime is 57725369311. The next prime is 57725369407. The reversal of 57725369321 is 12396352775.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 39446329321 + 18279040000 = 198611^2 + 135200^2 .

It is a cyclic number.

It is not a de Polignac number, because 57725369321 - 2³⁴ = 40545500137 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 57725369321.

It is not an unprimeable number, because it can be changed into a prime (57725369311) 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, 364166 + ... + 498063.

It is an arithmetic number, because the mean of its divisors is an integer number (14431574625).

Almost surely, 2^57725369321 is an apocalyptic number.

It is an amenable number.

57725369321 is a deficient number, since it is larger than the sum of its proper divisors (929179).

57725369321 is an equidigital number, since it uses as much as digits as its factorization.

57725369321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 929178.

The product of its digits is 2381400, while the sum is 50.

The spelling of 57725369321 in words is "fifty-seven billion, seven hundred twenty-five million, three hundred sixty-nine thousand, three hundred twenty-one".