22500449 has 2 divisors, whose sum is σ = 22500450. Its totient is φ = 22500448.

The previous prime is 22500437. The next prime is 22500493. The reversal of 22500449 is 94400522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13542400 + 8958049 = 3680^2 + 2993^2 .

It is a cyclic number.

It is not a de Polignac number, because 22500449 - 2⁸ = 22500193 is a prime.

It is not a weakly prime, because it can be changed into another prime (22500419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11250224 + 11250225.

It is an arithmetic number, because the mean of its divisors is an integer number (11250225).

Almost surely, 2^22500449 is an apocalyptic number.

It is an amenable number.

22500449 is a deficient number, since it is larger than the sum of its proper divisors (1).

22500449 is an equidigital number, since it uses as much as digits as its factorization.

22500449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 22500449 is about 4743.4638187721. The cubic root of 22500449 is about 282.3126865415.

The spelling of 22500449 in words is "twenty-two million, five hundred thousand, four hundred forty-nine".