825304099 has 2 divisors, whose sum is σ = 825304100. Its totient is φ = 825304098.

The previous prime is 825304097. The next prime is 825304157. The reversal of 825304099 is 990403528.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 825304099 - 2¹ = 825304097 is a prime.

It is a super-2 number, since 2×825304099² = 1362253711652403602, which contains 22 as substring.

Together with 825304097, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (825304093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 412652049 + 412652050.

It is an arithmetic number, because the mean of its divisors is an integer number (412652050).

Almost surely, 2^825304099 is an apocalyptic number.

825304099 is a deficient number, since it is larger than the sum of its proper divisors (1).

825304099 is an equidigital number, since it uses as much as digits as its factorization.

825304099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 77760, while the sum is 40.

The square root of 825304099 is about 28728.1064290705. The cubic root of 825304099 is about 938.0039503049.

The spelling of 825304099 in words is "eight hundred twenty-five million, three hundred four thousand, ninety-nine".