825799243 has 2 divisors, whose sum is σ = 825799244. Its totient is φ = 825799242.

The previous prime is 825799237. The next prime is 825799277. The reversal of 825799243 is 342997528.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 825799243 - 2⁵ = 825799211 is a prime.

It is not a weakly prime, because it can be changed into another prime (825799213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 412899621 + 412899622.

It is an arithmetic number, because the mean of its divisors is an integer number (412899622).

Almost surely, 2^825799243 is an apocalyptic number.

825799243 is a deficient number, since it is larger than the sum of its proper divisors (1).

825799243 is an equidigital number, since it uses as much as digits as its factorization.

825799243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1088640, while the sum is 49.

The square root of 825799243 is about 28736.7228994539. The cubic root of 825799243 is about 938.1914990227.

The spelling of 825799243 in words is "eight hundred twenty-five million, seven hundred ninety-nine thousand, two hundred forty-three".