56833173221 has 4 divisors (see below), whose sum is σ = 61999825344. Its totient is φ = 51666521100.

The previous prime is 56833173209. The next prime is 56833173223. The reversal of 56833173221 is 12237133865.

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 56833173221 - 2¹⁸ = 56832911077 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 (56833173223) 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, 2583326045 + ... + 2583326066.

It is an arithmetic number, because the mean of its divisors is an integer number (15499956336).

Almost surely, 2^56833173221 is an apocalyptic number.

It is an amenable number.

56833173221 is a deficient number, since it is larger than the sum of its proper divisors (5166652123).

56833173221 is a wasteful number, since it uses less digits than its factorization.

56833173221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5166652122.

The product of its digits is 181440, while the sum is 41.

The spelling of 56833173221 in words is "fifty-six billion, eight hundred thirty-three million, one hundred seventy-three thousand, two hundred twenty-one".