57675355721 has 4 divisors (see below), whose sum is σ = 58115625744. Its totient is φ = 57235085700.

The previous prime is 57675355697. The next prime is 57675355729. The reversal of 57675355721 is 12755357675.

57675355721 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 a de Polignac number, because none of the positive numbers 2^k-57675355721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57675355729) 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, 220134815 + ... + 220135076.

It is an arithmetic number, because the mean of its divisors is an integer number (14528906436).

Almost surely, 2^57675355721 is an apocalyptic number.

It is an amenable number.

57675355721 is a deficient number, since it is larger than the sum of its proper divisors (440270023).

57675355721 is a wasteful number, since it uses less digits than its factorization.

57675355721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440270022.

The product of its digits is 7717500, while the sum is 53.

The spelling of 57675355721 in words is "fifty-seven billion, six hundred seventy-five million, three hundred fifty-five thousand, seven hundred twenty-one".