2056321973 has 4 divisors (see below), whose sum is σ = 2076286368. Its totient is φ = 2036357580.

The previous prime is 2056321933. The next prime is 2056321979. The reversal of 2056321973 is 3791236502.

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 2056321973 - 2¹⁸ = 2056059829 is a prime.

It is a super-2 number, since 2×2056321973² = 8456920113285225458, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2056321979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9982043 + ... + 9982248.

It is an arithmetic number, because the mean of its divisors is an integer number (519071592).

Almost surely, 2^2056321973 is an apocalyptic number.

It is an amenable number.

2056321973 is a deficient number, since it is larger than the sum of its proper divisors (19964395).

2056321973 is a wasteful number, since it uses less digits than its factorization.

2056321973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19964394.

The product of its (nonzero) digits is 68040, while the sum is 38.

The square root of 2056321973 is about 45346.6864610856. The cubic root of 2056321973 is about 1271.6386092539.

The spelling of 2056321973 in words is "two billion, fifty-six million, three hundred twenty-one thousand, nine hundred seventy-three".