22500505 has 8 divisors (see below), whose sum is σ = 27102600. Its totient is φ = 17932416.

The previous prime is 22500497. The next prime is 22500547. The reversal of 22500505 is 50500522.

It can be written as a sum of positive squares in 4 ways, for example, as 419904 + 22080601 = 648^2 + 4699^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22500505 - 2³ = 22500497 is a prime.

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 7 ways as a sum of consecutive naturals, for example, 7020 + ... + 9709.

It is an arithmetic number, because the mean of its divisors is an integer number (3387825).

Almost surely, 2^22500505 is an apocalyptic number.

It is an amenable number.

22500505 is a deficient number, since it is larger than the sum of its proper divisors (4602095).

22500505 is a wasteful number, since it uses less digits than its factorization.

22500505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17003.

The product of its (nonzero) digits is 500, while the sum is 19.

The square root of 22500505 is about 4743.4697216278. The cubic root of 22500505 is about 282.3129207516.

It can be divided in two parts, 22500 and 505, that added together give a triangular number (23005 = T₂₁₄).

The spelling of 22500505 in words is "twenty-two million, five hundred thousand, five hundred five".