20875222 has 8 divisors (see below), whose sum is σ = 31413816. Its totient is φ = 10403952.

The previous prime is 20875219. The next prime is 20875223. The reversal of 20875222 is 22257802.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20875223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16048 + ... + 17299.

It is an arithmetic number, because the mean of its divisors is an integer number (3926727).

Almost surely, 2^20875222 is an apocalyptic number.

20875222 is a deficient number, since it is larger than the sum of its proper divisors (10538594).

20875222 is a wasteful number, since it uses less digits than its factorization.

20875222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33662.

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 20875222 is about 4568.9410151588. The cubic root of 20875222 is about 275.3448983854.

The spelling of 20875222 in words is "twenty million, eight hundred seventy-five thousand, two hundred twenty-two".