825565548 has 12 divisors (see below), whose sum is σ = 1926319640. Its totient is φ = 275188512.

The previous prime is 825565547. The next prime is 825565579. The reversal of 825565548 is 845565528.

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

It is a junction number, because it is equal to n+sod(n) for n = 825565497 and 825565506.

It is not an unprimeable number, because it can be changed into a prime (825565547) 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 3 ways as a sum of consecutive naturals, for example, 34398553 + ... + 34398576.

Almost surely, 2^825565548 is an apocalyptic number.

It is an amenable number.

825565548 is an abundant number, since it is smaller than the sum of its proper divisors (1100754092).

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

825565548 is a wasteful number, since it uses less digits than its factorization.

825565548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68797136 (or 68797134 counting only the distinct ones).

The product of its digits is 1920000, while the sum is 48.

The square root of 825565548 is about 28732.6564730795. The cubic root of 825565548 is about 938.1029902842.

The spelling of 825565548 in words is "eight hundred twenty-five million, five hundred sixty-five thousand, five hundred forty-eight".