22855013 has 2 divisors, whose sum is σ = 22855014. Its totient is φ = 22855012.

The previous prime is 22855009. The next prime is 22855033. The reversal of 22855013 is 31055822.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22486564 + 368449 = 4742^2 + 607^2 .

It is a cyclic number.

It is not a de Polignac number, because 22855013 - 2² = 22855009 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22855033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11427506 + 11427507.

It is an arithmetic number, because the mean of its divisors is an integer number (11427507).

Almost surely, 2^22855013 is an apocalyptic number.

It is an amenable number.

22855013 is a deficient number, since it is larger than the sum of its proper divisors (1).

22855013 is an equidigital number, since it uses as much as digits as its factorization.

22855013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 22855013 is about 4780.6916863567. The cubic root of 22855013 is about 283.7878672771.

The spelling of 22855013 in words is "twenty-two million, eight hundred fifty-five thousand, thirteen".