20482225 has 6 divisors (see below), whose sum is σ = 25397990. Its totient is φ = 16385760.

The previous prime is 20482223. The next prime is 20482237. The reversal of 20482225 is 52228402.

20482225 is nontrivially palindromic in base 4.

It can be written as a sum of positive squares in 3 ways, for example, as 2436721 + 18045504 = 1561^2 + 4248^2 .

It is not a de Polignac number, because 20482225 - 2¹ = 20482223 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 819289 = 20482225 / (2 + 0 + 4 + 8 + 2 + 2 + 2 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 20482225.

It is not an unprimeable number, because it can be changed into a prime (20482223) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 409620 + ... + 409669.

Almost surely, 2^20482225 is an apocalyptic number.

20482225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20482225 is a deficient number, since it is larger than the sum of its proper divisors (4915765).

20482225 is an equidigital number, since it uses as much as digits as its factorization.

20482225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 819299 (or 819294 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 25.

The square root of 20482225 is about 4525.7292230093. The cubic root of 20482225 is about 273.6060591732.

The spelling of 20482225 in words is "twenty million, four hundred eighty-two thousand, two hundred twenty-five".