22256125 has 16 divisors (see below), whose sum is σ = 29240640. Its totient is φ = 16866000.

The previous prime is 22256123. The next prime is 22256189. The reversal of 22256125 is 52165222.

It is a happy number.

It is not a de Polignac number, because 22256125 - 2¹ = 22256123 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 22256125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22256123) 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, 2311 + ... + 7060.

It is an arithmetic number, because the mean of its divisors is an integer number (1827540).

Almost surely, 2^22256125 is an apocalyptic number.

22256125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22256125 is a deficient number, since it is larger than the sum of its proper divisors (6984515).

22256125 is an equidigital number, since it uses as much as digits as its factorization.

22256125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9405 (or 9395 counting only the distinct ones).

The product of its digits is 2400, while the sum is 25.

The square root of 22256125 is about 4717.6397700545. The cubic root of 22256125 is about 281.2871226719.

The spelling of 22256125 in words is "twenty-two million, two hundred fifty-six thousand, one hundred twenty-five".