20225292 has 12 divisors (see below), whose sum is σ = 47192376. Its totient is φ = 6741760.

The previous prime is 20225287. The next prime is 20225297. The reversal of 20225292 is 29252202.

It is an interprime number because it is at equal distance from previous prime (20225287) and next prime (20225297).

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (20225297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 842709 + ... + 842732.

It is an arithmetic number, because the mean of its divisors is an integer number (3932698).

Almost surely, 2^20225292 is an apocalyptic number.

It is an amenable number.

20225292 is an abundant number, since it is smaller than the sum of its proper divisors (26967084).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20225292 is a wasteful number, since it uses less digits than its factorization.

20225292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1685448 (or 1685446 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 20225292 is about 4497.2538287270. The cubic root of 20225292 is about 272.4571859903.

Adding to 20225292 its reverse (29252202), we get a palindrome (49477494).

The spelling of 20225292 in words is "twenty million, two hundred twenty-five thousand, two hundred ninety-two".