22085975 has 24 divisors (see below), whose sum is σ = 29270448. Its totient is φ = 16473600.

The previous prime is 22085971. The next prime is 22085983. The reversal of 22085975 is 57958022.

It is not a de Polignac number, because 22085975 - 2² = 22085971 is a prime.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22085971) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 66560 + ... + 66890.

It is an arithmetic number, because the mean of its divisors is an integer number (1219602).

Almost surely, 2^22085975 is an apocalyptic number.

22085975 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

22085975 is a deficient number, since it is larger than the sum of its proper divisors (7184473).

22085975 is a wasteful number, since it uses less digits than its factorization.

22085975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 515 (or 510 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 38.

The square root of 22085975 is about 4699.5717890038. The cubic root of 22085975 is about 280.5684666948.

The spelling of 22085975 in words is "twenty-two million, eighty-five thousand, nine hundred seventy-five".