22553191 has 2 divisors, whose sum is σ = 22553192. Its totient is φ = 22553190.

The previous prime is 22553177. The next prime is 22553227. The reversal of 22553191 is 19135522.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22553191 - 2⁹ = 22552679 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22553291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11276595 + 11276596.

It is an arithmetic number, because the mean of its divisors is an integer number (11276596).

Almost surely, 2^22553191 is an apocalyptic number.

22553191 is a deficient number, since it is larger than the sum of its proper divisors (1).

22553191 is an equidigital number, since it uses as much as digits as its factorization.

22553191 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2700, while the sum is 28.

The square root of 22553191 is about 4749.0200041693. The cubic root of 22553191 is about 282.5330986880.

The spelling of 22553191 in words is "twenty-two million, five hundred fifty-three thousand, one hundred ninety-one".