22535425 has 36 divisors (see below), whose sum is σ = 32314896. Its totient is φ = 15458400.

The previous prime is 22535417. The next prime is 22535431. The reversal of 22535425 is 52453522.

It is not a de Polignac number, because 22535425 - 2³ = 22535417 is a prime.

It is a super-3 number, since 3×22535425³ (a number of 23 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 22535393 and 22535402.

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, 99162 + ... + 99388.

It is an arithmetic number, because the mean of its divisors is an integer number (897636).

Almost surely, 2^22535425 is an apocalyptic number.

22535425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22535425 is a deficient number, since it is larger than the sum of its proper divisors (9779471).

22535425 is a wasteful number, since it uses less digits than its factorization.

22535425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286 (or 262 counting only the distinct ones).

The product of its digits is 12000, while the sum is 28.

The square root of 22535425 is about 4747.1491444866. The cubic root of 22535425 is about 282.4588918700.

Adding to 22535425 its reverse (52453522), we get a palindrome (74988947).

The spelling of 22535425 in words is "twenty-two million, five hundred thirty-five thousand, four hundred twenty-five".