1825447563 has 16 divisors (see below), whose sum is σ = 2741415840. Its totient is φ = 1200292992.

The previous prime is 1825447541. The next prime is 1825447597. The reversal of 1825447563 is 3657445281.

1825447563 is a `hidden beast` number, since 1 + 82 + 5 + 4 + 4 + 7 + 563 = 666.

It is not a de Polignac number, because 1825447563 - 2¹² = 1825443467 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (1825847563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 461106 + ... + 465047.

It is an arithmetic number, because the mean of its divisors is an integer number (171338490).

Almost surely, 2^1825447563 is an apocalyptic number.

1825447563 is a deficient number, since it is larger than the sum of its proper divisors (915968277).

1825447563 is an equidigital number, since it uses as much as digits as its factorization.

1825447563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 926235 (or 926229 counting only the distinct ones).

The product of its digits is 806400, while the sum is 45.

The square root of 1825447563 is about 42725.2567341614. The cubic root of 1825447563 is about 1222.1460844604.

The spelling of 1825447563 in words is "one billion, eight hundred twenty-five million, four hundred forty-seven thousand, five hundred sixty-three".