22516505 has 8 divisors (see below), whose sum is σ = 29476224. Its totient is φ = 16375600.

The previous prime is 22516453. The next prime is 22516523. The reversal of 22516505 is 50561522.

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

It is not a de Polignac number, because 22516505 - 2¹⁶ = 22450969 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 7 ways as a sum of consecutive naturals, for example, 204641 + ... + 204750.

It is an arithmetic number, because the mean of its divisors is an integer number (3684528).

Almost surely, 2^22516505 is an apocalyptic number.

It is an amenable number.

22516505 is a deficient number, since it is larger than the sum of its proper divisors (6959719).

22516505 is a wasteful number, since it uses less digits than its factorization.

22516505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409407.

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 22516505 is about 4745.1559510726. The cubic root of 22516505 is about 282.3798220127.

The spelling of 22516505 in words is "twenty-two million, five hundred sixteen thousand, five hundred five".