22198825 has 24 divisors (see below), whose sum is σ = 30399840. Its totient is φ = 15945600.

The previous prime is 22198819. The next prime is 22198837. The reversal of 22198825 is 52889122.

It is not a de Polignac number, because 22198825 - 2³ = 22198817 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24022 + ... + 24928.

It is an arithmetic number, because the mean of its divisors is an integer number (1266660).

Almost surely, 2^22198825 is an apocalyptic number.

22198825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22198825 is a deficient number, since it is larger than the sum of its proper divisors (8201015).

22198825 is a wasteful number, since it uses less digits than its factorization.

22198825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1017 (or 1012 counting only the distinct ones).

The product of its digits is 23040, while the sum is 37.

The square root of 22198825 is about 4711.5629041752. The cubic root of 22198825 is about 281.0455172105.

The spelling of 22198825 in words is "twenty-two million, one hundred ninety-eight thousand, eight hundred twenty-five".