57275642221 has 4 divisors (see below), whose sum is σ = 65457876832. Its totient is φ = 49093407612.

The previous prime is 57275642201. The next prime is 57275642227. The reversal of 57275642221 is 12224657275.

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 57275642221 - 2¹⁵ = 57275609453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57275642227) 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, 4091117295 + ... + 4091117308.

It is an arithmetic number, because the mean of its divisors is an integer number (16364469208).

Almost surely, 2^57275642221 is an apocalyptic number.

It is an amenable number.

57275642221 is a deficient number, since it is larger than the sum of its proper divisors (8182234611).

57275642221 is an equidigital number, since it uses as much as digits as its factorization.

57275642221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8182234610.

The product of its digits is 470400, while the sum is 43.

The spelling of 57275642221 in words is "fifty-seven billion, two hundred seventy-five million, six hundred forty-two thousand, two hundred twenty-one".