22503109 has 2 divisors, whose sum is σ = 22503110. Its totient is φ = 22503108.

The previous prime is 22503097. The next prime is 22503133. The reversal of 22503109 is 90130522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20223009 + 2280100 = 4497^2 + 1510^2 .

It is a cyclic number.

It is not a de Polignac number, because 22503109 - 2⁷ = 22502981 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22503109.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22503149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11251554 + 11251555.

It is an arithmetic number, because the mean of its divisors is an integer number (11251555).

Almost surely, 2^22503109 is an apocalyptic number.

It is an amenable number.

22503109 is a deficient number, since it is larger than the sum of its proper divisors (1).

22503109 is an equidigital number, since it uses as much as digits as its factorization.

22503109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 22503109 is about 4743.7441963074. The cubic root of 22503109 is about 282.3238110922.

The spelling of 22503109 in words is "twenty-two million, five hundred three thousand, one hundred nine".