22026625 has 8 divisors (see below), whose sum is σ = 27489384. Its totient is φ = 17621200.

The previous prime is 22026601. The next prime is 22026649. The reversal of 22026625 is 52662022.

It is an interprime number because it is at equal distance from previous prime (22026601) and next prime (22026649).

It can be written as a sum of positive squares in 4 ways, for example, as 3904576 + 18122049 = 1976^2 + 4257^2 .

It is not a de Polignac number, because 22026625 - 2⁹ = 22026113 is a prime.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

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

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22026625.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87982 + ... + 88231.

It is an arithmetic number, because the mean of its divisors is an integer number (3436173).

Almost surely, 2^22026625 is an apocalyptic number.

22026625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22026625 is a deficient number, since it is larger than the sum of its proper divisors (5462759).

22026625 is an equidigital number, since it uses as much as digits as its factorization.

22026625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176228 (or 176218 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 22026625 is about 4693.2531361519. The cubic root of 22026625 is about 280.3169243100.

Adding to 22026625 its reverse (52662022), we get a palindrome (74688647).

The spelling of 22026625 in words is "twenty-two million, twenty-six thousand, six hundred twenty-five".