22254999 has 16 divisors (see below), whose sum is σ = 32397792. Its totient is φ = 13506048.

The previous prime is 22254997. The next prime is 22255003. The reversal of 22254999 is 99945222.

It is not a de Polignac number, because 22254999 - 2¹ = 22254997 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22254999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22254997) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1062 + ... + 6755.

It is an arithmetic number, because the mean of its divisors is an integer number (2024862).

Almost surely, 2^22254999 is an apocalyptic number.

22254999 is a deficient number, since it is larger than the sum of its proper divisors (10142793).

22254999 is a wasteful number, since it uses less digits than its factorization.

22254999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7906.

The product of its digits is 116640, while the sum is 42.

The square root of 22254999 is about 4717.5204292085. The cubic root of 22254999 is about 281.2823788895.

The spelling of 22254999 in words is "twenty-two million, two hundred fifty-four thousand, nine hundred ninety-nine".