996525809 has 2 divisors, whose sum is σ = 996525810. Its totient is φ = 996525808.

The previous prime is 996525797. The next prime is 996525821. The reversal of 996525809 is 908525699.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (996525797) and next prime (996525821).

It can be written as a sum of positive squares in only one way, i.e., 687750625 + 308775184 = 26225^2 + 17572^2 .

It is a cyclic number.

It is not a de Polignac number, because 996525809 - 2⁸ = 996525553 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (996525709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 498262904 + 498262905.

It is an arithmetic number, because the mean of its divisors is an integer number (498262905).

Almost surely, 2^996525809 is an apocalyptic number.

It is an amenable number.

996525809 is a deficient number, since it is larger than the sum of its proper divisors (1).

996525809 is an equidigital number, since it uses as much as digits as its factorization.

996525809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1749600, while the sum is 53.

The square root of 996525809 is about 31567.7970248163. The cubic root of 996525809 is about 998.8405926274.

The spelling of 996525809 in words is "nine hundred ninety-six million, five hundred twenty-five thousand, eight hundred nine".