22059985 has 12 divisors (see below), whose sum is σ = 26820828. Its totient is φ = 17418368.

The previous prime is 22059977. The next prime is 22059997. The reversal of 22059985 is 58995022.

It can be written as a sum of positive squares in 6 ways, for example, as 7974976 + 14085009 = 2824^2 + 3753^2 .

It is not a de Polignac number, because 22059985 - 2³ = 22059977 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39327 + ... + 39883.

It is an arithmetic number, because the mean of its divisors is an integer number (2235069).

Almost surely, 2^22059985 is an apocalyptic number.

It is an amenable number.

22059985 is a deficient number, since it is larger than the sum of its proper divisors (4760843).

22059985 is an frugal number, since it uses more digits than its factorization.

22059985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 740 (or 651 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 40.

The square root of 22059985 is about 4696.8058294973. The cubic root of 22059985 is about 280.4583691233.

The spelling of 22059985 in words is "twenty-two million, fifty-nine thousand, nine hundred eighty-five".