22541899 has 2 divisors, whose sum is σ = 22541900. Its totient is φ = 22541898.

The previous prime is 22541891. The next prime is 22541941. The reversal of 22541899 is 99814522.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22541899 - 2³ = 22541891 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22541891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11270949 + 11270950.

It is an arithmetic number, because the mean of its divisors is an integer number (11270950).

Almost surely, 2^22541899 is an apocalyptic number.

22541899 is a deficient number, since it is larger than the sum of its proper divisors (1).

22541899 is an equidigital number, since it uses as much as digits as its factorization.

22541899 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51840, while the sum is 40.

The square root of 22541899 is about 4747.8309784574. The cubic root of 22541899 is about 282.4859376403.

It can be divided in two parts, 225 and 41899, that added together give a palindrome (42124).

The spelling of 22541899 in words is "twenty-two million, five hundred forty-one thousand, eight hundred ninety-nine".