22552505 has 4 divisors (see below), whose sum is σ = 27063012. Its totient is φ = 18042000.

The previous prime is 22552477. The next prime is 22552559. The reversal of 22552505 is 50525522.

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

It can be written as a sum of positive squares in 2 ways, for example, as 8743849 + 13808656 = 2957^2 + 3716^2 .

It is not a de Polignac number, because 22552505 - 2⁶ = 22552441 is a prime.

It is a Duffinian 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, 2255246 + ... + 2255255.

It is an arithmetic number, because the mean of its divisors is an integer number (6765753).

Almost surely, 2^22552505 is an apocalyptic number.

It is an amenable number.

22552505 is a deficient number, since it is larger than the sum of its proper divisors (4510507).

22552505 is an equidigital number, since it uses as much as digits as its factorization.

22552505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4510506.

The product of its (nonzero) digits is 5000, while the sum is 26.

The square root of 22552505 is about 4748.9477781926. The cubic root of 22552505 is about 282.5302340576.

The spelling of 22552505 in words is "twenty-two million, five hundred fifty-two thousand, five hundred five".