22052515 has 16 divisors (see below), whose sum is σ = 27874368. Its totient is φ = 16715776.

The previous prime is 22052491. The next prime is 22052533. The reversal of 22052515 is 51525022.

It is a cyclic number.

It is not a de Polignac number, because 22052515 - 2⁹ = 22052003 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 15 ways as a sum of consecutive naturals, for example, 12147 + ... + 13843.

It is an arithmetic number, because the mean of its divisors is an integer number (1742148).

Almost surely, 2^22052515 is an apocalyptic number.

22052515 is a deficient number, since it is larger than the sum of its proper divisors (5821853).

22052515 is a wasteful number, since it uses less digits than its factorization.

22052515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1838.

The product of its (nonzero) digits is 1000, while the sum is 22.

The square root of 22052515 is about 4696.0105408740. The cubic root of 22052515 is about 280.4267090756.

Adding to 22052515 its reverse (51525022), we get a palindrome (73577537).

The spelling of 22052515 in words is "twenty-two million, fifty-two thousand, five hundred fifteen".