22755505 has 4 divisors (see below), whose sum is σ = 27306612. Its totient is φ = 18204400.

The previous prime is 22755493. The next prime is 22755527. The reversal of 22755505 is 50555722.

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 14684224 + 8071281 = 3832^2 + 2841^2 .

It is not a de Polignac number, because 22755505 - 2⁷ = 22755377 is a prime.

It is a Duffinian number.

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 3 ways as a sum of consecutive naturals, for example, 2275546 + ... + 2275555.

It is an arithmetic number, because the mean of its divisors is an integer number (6826653).

Almost surely, 2^22755505 is an apocalyptic number.

It is an amenable number.

22755505 is a deficient number, since it is larger than the sum of its proper divisors (4551107).

22755505 is an equidigital number, since it uses as much as digits as its factorization.

22755505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4551106.

The product of its (nonzero) digits is 17500, while the sum is 31.

The square root of 22755505 is about 4770.2730529813. The cubic root of 22755505 is about 283.3754085919.

The spelling of 22755505 in words is "twenty-two million, seven hundred fifty-five thousand, five hundred five".