20225269 has 4 divisors (see below), whose sum is σ = 20239744. Its totient is φ = 20210796.

The previous prime is 20225251. The next prime is 20225281. The reversal of 20225269 is 96252202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20225269 - 2¹¹ = 20223221 is a prime.

It is a super-2 number, since 2×20225269² = 818123012244722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20225069) 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, 4887 + ... + 8020.

It is an arithmetic number, because the mean of its divisors is an integer number (5059936).

Almost surely, 2^20225269 is an apocalyptic number.

It is an amenable number.

20225269 is a deficient number, since it is larger than the sum of its proper divisors (14475).

20225269 is a wasteful number, since it uses less digits than its factorization.

20225269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14474.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 20225269 is about 4497.2512716102. The cubic root of 20225269 is about 272.4570827117.

The spelling of 20225269 in words is "twenty million, two hundred twenty-five thousand, two hundred sixty-nine".