5215509 has 36 divisors (see below), whose sum is σ = 8526336. Its totient is φ = 3184272.

The previous prime is 5215499. The next prime is 5215517. The reversal of 5215509 is 9055125.

It is not a de Polignac number, because 5215509 - 2⁵ = 5215477 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5215559) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 41004 + ... + 41130.

Almost surely, 2^5215509 is an apocalyptic number.

It is an amenable number.

5215509 is a deficient number, since it is larger than the sum of its proper divisors (3310827).

5215509 is a wasteful number, since it uses less digits than its factorization.

5215509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168 (or 143 counting only the distinct ones).

The product of its (nonzero) digits is 2250, while the sum is 27.

The square root of 5215509 is about 2283.7488916253. The cubic root of 5215509 is about 173.4198873276.

The spelling of 5215509 in words is "five million, two hundred fifteen thousand, five hundred nine".