20875227 has 4 divisors (see below), whose sum is σ = 27833640. Its totient is φ = 13916816.

The previous prime is 20875223. The next prime is 20875241. The reversal of 20875227 is 72257802.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20875227 - 2² = 20875223 is a prime.

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, 3479202 + ... + 3479207.

It is an arithmetic number, because the mean of its divisors is an integer number (6958410).

Almost surely, 2^20875227 is an apocalyptic number.

20875227 is a deficient number, since it is larger than the sum of its proper divisors (6958413).

20875227 is an equidigital number, since it uses as much as digits as its factorization.

20875227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6958412.

The product of its (nonzero) digits is 15680, while the sum is 33.

The square root of 20875227 is about 4568.9415623315. The cubic root of 20875227 is about 275.3449203688.

The spelling of 20875227 in words is "twenty million, eight hundred seventy-five thousand, two hundred twenty-seven".