20382225 has 24 divisors (see below), whose sum is σ = 33837120. Its totient is φ = 10825920.

The previous prime is 20382217. The next prime is 20382233. The reversal of 20382225 is 52228302.

It is an interprime number because it is at equal distance from previous prime (20382217) and next prime (20382233).

It is not a de Polignac number, because 20382225 - 2³ = 20382217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20382195 and 20382204.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26547 + ... + 27303.

It is an arithmetic number, because the mean of its divisors is an integer number (1409880).

Almost surely, 2^20382225 is an apocalyptic number.

20382225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20382225 is a deficient number, since it is larger than the sum of its proper divisors (13454895).

20382225 is a wasteful number, since it uses less digits than its factorization.

20382225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1129 (or 1124 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 20382225 is about 4514.6677618624. The cubic root of 20382225 is about 273.1600585640.

It can be divided in two parts, 203 and 82225, that added together give a palindrome (82428).

The spelling of 20382225 in words is "twenty million, three hundred eighty-two thousand, two hundred twenty-five".