22125985 has 16 divisors (see below), whose sum is σ = 31392000. Its totient is φ = 14648256.

The previous prime is 22125979. The next prime is 22125989. The reversal of 22125985 is 58952122.

It is a happy number.

It is not a de Polignac number, because 22125985 - 2⁵ = 22125953 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22125985.

It is not an unprimeable number, because it can be changed into a prime (22125989) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9885 + ... + 11914.

It is an arithmetic number, because the mean of its divisors is an integer number (1962000).

Almost surely, 2^22125985 is an apocalyptic number.

It is an amenable number.

22125985 is a deficient number, since it is larger than the sum of its proper divisors (9266015).

22125985 is a wasteful number, since it uses less digits than its factorization.

22125985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21840.

The product of its digits is 14400, while the sum is 34.

The square root of 22125985 is about 4703.8266337100. The cubic root of 22125985 is about 280.7377864040.

The spelling of 22125985 in words is "twenty-two million, one hundred twenty-five thousand, nine hundred eighty-five".