22545985 has 32 divisors (see below), whose sum is σ = 34036992. Its totient is φ = 13927680.

The previous prime is 22545973. The next prime is 22546019. The reversal of 22545985 is 58954522.

It is not a de Polignac number, because 22545985 - 2⁷ = 22545857 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 60259 + ... + 60631.

It is an arithmetic number, because the mean of its divisors is an integer number (1063656).

Almost surely, 2^22545985 is an apocalyptic number.

It is an amenable number.

22545985 is a deficient number, since it is larger than the sum of its proper divisors (11491007).

22545985 is a wasteful number, since it uses less digits than its factorization.

22545985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 553.

The product of its digits is 144000, while the sum is 40.

The square root of 22545985 is about 4748.2612607143. The cubic root of 22545985 is about 282.5030046408.

The spelling of 22545985 in words is "twenty-two million, five hundred forty-five thousand, nine hundred eighty-five".