20225267 has 4 divisors (see below), whose sum is σ = 20922720. Its totient is φ = 19527816.

The previous prime is 20225251. The next prime is 20225281. The reversal of 20225267 is 76252202.

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 20225267 - 2⁴ = 20225251 is a prime.

It is a super-2 number, since 2×20225267² = 818122850442578, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20225207) 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, 348683 + ... + 348740.

It is an arithmetic number, because the mean of its divisors is an integer number (5230680).

Almost surely, 2^20225267 is an apocalyptic number.

20225267 is a deficient number, since it is larger than the sum of its proper divisors (697453).

20225267 is an equidigital number, since it uses as much as digits as its factorization.

20225267 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 697452.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 20225267 is about 4497.2510492522. The cubic root of 20225267 is about 272.4570737309.

Adding to 20225267 its reverse (76252202), we get a palindrome (96477469).

The spelling of 20225267 in words is "twenty million, two hundred twenty-five thousand, two hundred sixty-seven".