22056413 has 2 divisors, whose sum is σ = 22056414. Its totient is φ = 22056412.

The previous prime is 22056409. The next prime is 22056449. The reversal of 22056413 is 31465022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19035769 + 3020644 = 4363^2 + 1738^2 .

It is a cyclic number.

It is not a de Polignac number, because 22056413 - 2² = 22056409 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22056493) 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 as a sum of consecutive naturals, namely, 11028206 + 11028207.

It is an arithmetic number, because the mean of its divisors is an integer number (11028207).

Almost surely, 2^22056413 is an apocalyptic number.

It is an amenable number.

22056413 is a deficient number, since it is larger than the sum of its proper divisors (1).

22056413 is an equidigital number, since it uses as much as digits as its factorization.

22056413 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 22056413 is about 4696.4255556753. The cubic root of 22056413 is about 280.4432308330.

The spelling of 22056413 in words is "twenty-two million, fifty-six thousand, four hundred thirteen".