1563225 has 24 divisors (see below), whose sum is σ = 2723040. Its totient is φ = 789120.

The previous prime is 1563217. The next prime is 1563227. The reversal of 1563225 is 5223651.

It is not a de Polignac number, because 1563225 - 2³ = 1563217 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1563195 and 1563204.

It is not an unprimeable number, because it can be changed into a prime (1563227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 877 + ... + 1973.

It is an arithmetic number, because the mean of its divisors is an integer number (113460).

2^1563225 is an apocalyptic number.

1563225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1563225 is a deficient number, since it is larger than the sum of its proper divisors (1159815).

1563225 is a wasteful number, since it uses less digits than its factorization.

1563225 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 digits is 1800, while the sum is 24.

The square root of 1563225 is about 1250.2899663678. The cubic root of 1563225 is about 116.0576655420.

Adding to 1563225 its reverse (5223651), we get a palindrome (6786876).

The spelling of 1563225 in words is "one million, five hundred sixty-three thousand, two hundred twenty-five".