22555201 has 2 divisors, whose sum is σ = 22555202. Its totient is φ = 22555200.

The previous prime is 22555199. The next prime is 22555217. The reversal of 22555201 is 10255522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19228225 + 3326976 = 4385^2 + 1824^2 .

It is a cyclic number.

It is not a de Polignac number, because 22555201 - 2¹ = 22555199 is a prime.

Together with 22555199, it forms a pair of twin primes.

It is equal to p_1421941 and since 22555201 and 1421941 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (22555231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11277600 + 11277601.

It is an arithmetic number, because the mean of its divisors is an integer number (11277601).

Almost surely, 2^22555201 is an apocalyptic number.

It is an amenable number.

22555201 is a deficient number, since it is larger than the sum of its proper divisors (1).

22555201 is an equidigital number, since it uses as much as digits as its factorization.

22555201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1000, while the sum is 22.

The square root of 22555201 is about 4749.2316220627. The cubic root of 22555201 is about 282.5414918042.

The spelling of 22555201 in words is "twenty-two million, five hundred fifty-five thousand, two hundred one".