22506845 has 8 divisors (see below), whose sum is σ = 27636576. Its totient is φ = 17586576.

The previous prime is 22506833. The next prime is 22506851. The reversal of 22506845 is 54860522.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22506845 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52127 + ... + 52556.

It is an arithmetic number, because the mean of its divisors is an integer number (3454572).

Almost surely, 2^22506845 is an apocalyptic number.

It is an amenable number.

22506845 is a deficient number, since it is larger than the sum of its proper divisors (5129731).

22506845 is a wasteful number, since it uses less digits than its factorization.

22506845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104731.

The product of its (nonzero) digits is 19200, while the sum is 32.

The square root of 22506845 is about 4744.1379617376. The cubic root of 22506845 is about 282.3394341689.

The spelling of 22506845 in words is "twenty-two million, five hundred six thousand, eight hundred forty-five".