22253999 has 4 divisors (see below), whose sum is σ = 22283064. Its totient is φ = 22224936.

The previous prime is 22253993. The next prime is 22254017. The reversal of 22253999 is 99935222.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22253999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22253993) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13352 + ... + 14925.

It is an arithmetic number, because the mean of its divisors is an integer number (5570766).

Almost surely, 2^22253999 is an apocalyptic number.

22253999 is a deficient number, since it is larger than the sum of its proper divisors (29065).

22253999 is an equidigital number, since it uses as much as digits as its factorization.

22253999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29064.

The product of its digits is 87480, while the sum is 41.

The square root of 22253999 is about 4717.4144401356. The cubic root of 22253999 is about 281.2781658048.

The spelling of 22253999 in words is "twenty-two million, two hundred fifty-three thousand, nine hundred ninety-nine".