22252505 has 12 divisors (see below), whose sum is σ = 29352036. Its totient is φ = 16183200.

The previous prime is 22252493. The next prime is 22252511. The reversal of 22252505 is 50525222.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2795584 + 19456921 = 1672^2 + 4411^2 .

It is not a de Polignac number, because 22252505 - 2¹² = 22248409 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17786 + ... + 18995.

It is an arithmetic number, because the mean of its divisors is an integer number (2446003).

Almost surely, 2^22252505 is an apocalyptic number.

It is an amenable number.

22252505 is a deficient number, since it is larger than the sum of its proper divisors (7099531).

22252505 is a wasteful number, since it uses less digits than its factorization.

22252505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36808 (or 36797 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 23.

The square root of 22252505 is about 4717.2560880241. The cubic root of 22252505 is about 281.2718712210.

Adding to 22252505 its reverse (50525222), we get a palindrome (72777727).

The spelling of 22252505 in words is "twenty-two million, two hundred fifty-two thousand, five hundred five".