22056351 has 4 divisors (see below), whose sum is σ = 29408472. Its totient is φ = 14704232.

The previous prime is 22056347. The next prime is 22056371. The reversal of 22056351 is 15365022.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22056351 - 2² = 22056347 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22056311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3676056 + ... + 3676061.

It is an arithmetic number, because the mean of its divisors is an integer number (7352118).

Almost surely, 2^22056351 is an apocalyptic number.

22056351 is a deficient number, since it is larger than the sum of its proper divisors (7352121).

22056351 is an equidigital number, since it uses as much as digits as its factorization.

22056351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7352120.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 22056351 is about 4696.4189549060. The cubic root of 22056351 is about 280.4429680599.

The spelling of 22056351 in words is "twenty-two million, fifty-six thousand, three hundred fifty-one".