20225469 has 16 divisors (see below), whose sum is σ = 29494080. Its totient is φ = 12226560.

The previous prime is 20225419. The next prime is 20225477. The reversal of 20225469 is 96452202.

It is not a de Polignac number, because 20225469 - 2⁸ = 20225213 is a prime.

It is a super-2 number, since 2×20225469² = 818139192539922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20225419) 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, 24979 + ... + 25775.

It is an arithmetic number, because the mean of its divisors is an integer number (1843380).

Almost surely, 2^20225469 is an apocalyptic number.

It is an amenable number.

20225469 is a deficient number, since it is larger than the sum of its proper divisors (9268611).

20225469 is a wasteful number, since it uses less digits than its factorization.

20225469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1580.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 20225469 is about 4497.2735073598. The cubic root of 20225469 is about 272.4579807836.

The spelling of 20225469 in words is "twenty million, two hundred twenty-five thousand, four hundred sixty-nine".