22725235 has 16 divisors (see below), whose sum is σ = 30915360. Its totient is φ = 15897600.

The previous prime is 22725233. The next prime is 22725251. The reversal of 22725235 is 53252722.

It is not a de Polignac number, because 22725235 - 2¹ = 22725233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22725233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7966 + ... + 10435.

It is an arithmetic number, because the mean of its divisors is an integer number (1932210).

Almost surely, 2^22725235 is an apocalyptic number.

22725235 is a deficient number, since it is larger than the sum of its proper divisors (8190125).

22725235 is a wasteful number, since it uses less digits than its factorization.

22725235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18438.

The product of its digits is 8400, while the sum is 28.

The square root of 22725235 is about 4767.0992227979. The cubic root of 22725235 is about 283.2497015759.

Adding to 22725235 its reverse (53252722), we get a palindrome (75977957).

The spelling of 22725235 in words is "twenty-two million, seven hundred twenty-five thousand, two hundred thirty-five".