22125535 has 4 divisors (see below), whose sum is σ = 26550648. Its totient is φ = 17700424.

The previous prime is 22125511. The next prime is 22125541. The reversal of 22125535 is 53552122.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22125535 - 2⁵ = 22125503 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2212549 + ... + 2212558.

It is an arithmetic number, because the mean of its divisors is an integer number (6637662).

Almost surely, 2^22125535 is an apocalyptic number.

22125535 is a deficient number, since it is larger than the sum of its proper divisors (4425113).

22125535 is an equidigital number, since it uses as much as digits as its factorization.

22125535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4425112.

The product of its digits is 3000, while the sum is 25.

The square root of 22125535 is about 4703.7788000713. The cubic root of 22125535 is about 280.7358831688.

Adding to 22125535 its reverse (53552122), we get a palindrome (75677657).

The spelling of 22125535 in words is "twenty-two million, one hundred twenty-five thousand, five hundred thirty-five".