22404125 has 8 divisors (see below), whose sum is σ = 27960504. Its totient is φ = 17923200.

The previous prime is 22404119. The next prime is 22404131. The reversal of 22404125 is 52140422.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (22404119) and next prime (22404131).

It can be written as a sum of positive squares in 4 ways, for example, as 182329 + 22221796 = 427^2 + 4714^2 .

It is not a de Polignac number, because 22404125 - 2⁶ = 22404061 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22404097 and 22404106.

It is a congruent number.

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, 89492 + ... + 89741.

It is an arithmetic number, because the mean of its divisors is an integer number (3495063).

Almost surely, 2^22404125 is an apocalyptic number.

22404125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22404125 is a deficient number, since it is larger than the sum of its proper divisors (5556379).

22404125 is an equidigital number, since it uses as much as digits as its factorization.

22404125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179248 (or 179238 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 22404125 is about 4733.2995890816. The cubic root of 22404125 is about 281.9092518558.

Adding to 22404125 its reverse (52140422), we get a palindrome (74544547).

The spelling of 22404125 in words is "twenty-two million, four hundred four thousand, one hundred twenty-five".