22500207 has 16 divisors (see below), whose sum is σ = 33533280. Its totient is φ = 14910336.

The previous prime is 22500193. The next prime is 22500211. The reversal of 22500207 is 70200522.

It is a happy number.

It is not a de Polignac number, because 22500207 - 2¹⁵ = 22467439 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22500207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22500287) 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, 2263 + ... + 7079.

It is an arithmetic number, because the mean of its divisors is an integer number (2095830).

Almost surely, 2^22500207 is an apocalyptic number.

22500207 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

22500207 is a deficient number, since it is larger than the sum of its proper divisors (11033073).

22500207 is a wasteful number, since it uses less digits than its factorization.

22500207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4999 (or 4993 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 18.

The square root of 22500207 is about 4743.4383099182. The cubic root of 22500207 is about 282.3116744148.

Adding to 22500207 its reverse (70200522), we get a palindrome (92700729).

The spelling of 22500207 in words is "twenty-two million, five hundred thousand, two hundred seven".