996502509 has 12 divisors (see below), whose sum is σ = 1441733436. Its totient is φ = 663254592.

The previous prime is 996502411. The next prime is 996502567. The reversal of 996502509 is 905205699.

996502509 is a `hidden beast` number, since 9 + 96 + 50 + 2 + 509 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 496309284 + 500193225 = 22278^2 + 22365^2 .

It is not a de Polignac number, because 996502509 - 2⁹ = 996501997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (996502109) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 84174 + ... + 95279.

It is an arithmetic number, because the mean of its divisors is an integer number (120144453).

Almost surely, 2^996502509 is an apocalyptic number.

It is an amenable number.

996502509 is a deficient number, since it is larger than the sum of its proper divisors (445230927).

996502509 is a wasteful number, since it uses less digits than its factorization.

996502509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180076 (or 180073 counting only the distinct ones).

The product of its (nonzero) digits is 218700, while the sum is 45.

The square root of 996502509 is about 31567.4279756841. The cubic root of 996502509 is about 998.8328078592.

The spelling of 996502509 in words is "nine hundred ninety-six million, five hundred two thousand, five hundred nine".