5209965 has 12 divisors (see below), whose sum is σ = 9030684. Its totient is φ = 2778624.

The previous prime is 5209957. The next prime is 5209999. The reversal of 5209965 is 5699025.

It can be written as a sum of positive squares in 2 ways, for example, as 1121481 + 4088484 = 1059^2 + 2022^2 .

It is not a de Polignac number, because 5209965 - 2³ = 5209957 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 57844 + ... + 57933.

It is an arithmetic number, because the mean of its divisors is an integer number (752557).

Almost surely, 2^5209965 is an apocalyptic number.

It is an amenable number.

5209965 is a deficient number, since it is larger than the sum of its proper divisors (3820719).

5209965 is a wasteful number, since it uses less digits than its factorization.

5209965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115788 (or 115785 counting only the distinct ones).

The product of its (nonzero) digits is 24300, while the sum is 36.

The square root of 5209965 is about 2282.5347752006. The cubic root of 5209965 is about 173.3584180494.

The spelling of 5209965 in words is "five million, two hundred nine thousand, nine hundred sixty-five".