22498549 has 2 divisors, whose sum is σ = 22498550. Its totient is φ = 22498548.

The previous prime is 22498543. The next prime is 22498573. The reversal of 22498549 is 94589422.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22496049 + 2500 = 4743^2 + 50^2 .

It is a cyclic number.

It is not a de Polignac number, because 22498549 - 2⁵ = 22498517 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22498543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11249274 + 11249275.

It is an arithmetic number, because the mean of its divisors is an integer number (11249275).

Almost surely, 2^22498549 is an apocalyptic number.

It is an amenable number.

22498549 is a deficient number, since it is larger than the sum of its proper divisors (1).

22498549 is an equidigital number, since it uses as much as digits as its factorization.

22498549 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 207360, while the sum is 43.

The square root of 22498549 is about 4743.2635389571. The cubic root of 22498549 is about 282.3047398971.

The spelling of 22498549 in words is "twenty-two million, four hundred ninety-eight thousand, five hundred forty-nine".