57705559221 has 4 divisors (see below), whose sum is σ = 76940745632. Its totient is φ = 38470372812.

The previous prime is 57705559199. The next prime is 57705559231. The reversal of 57705559221 is 12295550775.

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 not a de Polignac number, because 57705559221 - 2²⁹ = 57168688309 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 (57705559231) 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, 9617593201 + ... + 9617593206.

It is an arithmetic number, because the mean of its divisors is an integer number (19235186408).

Almost surely, 2^57705559221 is an apocalyptic number.

It is an amenable number.

57705559221 is a deficient number, since it is larger than the sum of its proper divisors (19235186411).

57705559221 is a wasteful number, since it uses less digits than its factorization.

57705559221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19235186410.

The product of its (nonzero) digits is 1102500, while the sum is 48.

The spelling of 57705559221 in words is "fifty-seven billion, seven hundred five million, five hundred fifty-nine thousand, two hundred twenty-one".