965521499 has 4 divisors (see below), whose sum is σ = 1016338440. Its totient is φ = 914704560.

The previous prime is 965521493. The next prime is 965521541. The reversal of 965521499 is 994125569.

965521499 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 965521499 - 2⁸ = 965521243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (965521493) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25408442 + ... + 25408479.

It is an arithmetic number, because the mean of its divisors is an integer number (254084610).

Almost surely, 2^965521499 is an apocalyptic number.

965521499 is a deficient number, since it is larger than the sum of its proper divisors (50816941).

965521499 is a wasteful number, since it uses less digits than its factorization.

965521499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50816940.

The product of its digits is 874800, while the sum is 50.

The square root of 965521499 is about 31072.8418236891. The cubic root of 965521499 is about 988.3724913858.

The spelling of 965521499 in words is "nine hundred sixty-five million, five hundred twenty-one thousand, four hundred ninety-nine".