22125425 has 36 divisors (see below), whose sum is σ = 32914560. Its totient is φ = 14451360.

The previous prime is 22125419. The next prime is 22125431. The reversal of 22125425 is 52452122.

It is an interprime number because it is at equal distance from previous prime (22125419) and next prime (22125431).

It is not a de Polignac number, because 22125425 - 2¹² = 22121329 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a self number, because there is not a number n which added to its sum of digits gives 22125425.

It is an unprimeable number.

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 35 ways as a sum of consecutive naturals, for example, 92456 + ... + 92694.

Almost surely, 2^22125425 is an apocalyptic number.

22125425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22125425 is a deficient number, since it is larger than the sum of its proper divisors (10789135).

22125425 is a wasteful number, since it uses less digits than its factorization.

22125425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302 (or 274 counting only the distinct ones).

The product of its digits is 1600, while the sum is 23.

The square root of 22125425 is about 4703.7671073300. The cubic root of 22125425 is about 280.7354179296.

Adding to 22125425 its reverse (52452122), we get a palindrome (74577547).

The spelling of 22125425 in words is "twenty-two million, one hundred twenty-five thousand, four hundred twenty-five".