22251585 has 8 divisors (see below), whose sum is σ = 35602560. Its totient is φ = 11867504.

The previous prime is 22251569. The next prime is 22251599. The reversal of 22251585 is 58515222.

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

It is a cyclic number.

It is not a de Polignac number, because 22251585 - 2⁴ = 22251569 is a prime.

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, 741705 + ... + 741734.

It is an arithmetic number, because the mean of its divisors is an integer number (4450320).

Almost surely, 2^22251585 is an apocalyptic number.

It is an amenable number.

22251585 is a deficient number, since it is larger than the sum of its proper divisors (13350975).

22251585 is a wasteful number, since it uses less digits than its factorization.

22251585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1483447.

The product of its digits is 8000, while the sum is 30.

The square root of 22251585 is about 4717.1585727003. The cubic root of 22251585 is about 281.2679948980.

The spelling of 22251585 in words is "twenty-two million, two hundred fifty-one thousand, five hundred eighty-five".