22648529 has 4 divisors (see below), whose sum is σ = 22756080. Its totient is φ = 22540980.

The previous prime is 22648519. The next prime is 22648541. The reversal of 22648529 is 92584622.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22648529 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22648492 and 22648501.

It is not an unprimeable number, because it can be changed into a prime (22648519) by changing a digit.

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, 53459 + ... + 53880.

It is an arithmetic number, because the mean of its divisors is an integer number (5689020).

Almost surely, 2^22648529 is an apocalyptic number.

It is an amenable number.

22648529 is a deficient number, since it is larger than the sum of its proper divisors (107551).

22648529 is a wasteful number, since it uses less digits than its factorization.

22648529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107550.

The product of its digits is 69120, while the sum is 38.

The square root of 22648529 is about 4759.0470684792. The cubic root of 22648529 is about 282.9306518055.

The spelling of 22648529 in words is "twenty-two million, six hundred forty-eight thousand, five hundred twenty-nine".