5236509 has 8 divisors (see below), whose sum is σ = 7077952. Its totient is φ = 3443040.

The previous prime is 5236487. The next prime is 5236541. The reversal of 5236509 is 9056325.

5236509 = 231² + 232² + ... + 303².

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5236509 - 2¹³ = 5228317 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a Curzon number.

5236509 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5236579) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11737 + ... + 12174.

It is an arithmetic number, because the mean of its divisors is an integer number (884744).

Almost surely, 2^5236509 is an apocalyptic number.

It is an amenable number.

5236509 is a deficient number, since it is larger than the sum of its proper divisors (1841443).

5236509 is a wasteful number, since it uses less digits than its factorization.

5236509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23987.

The product of its (nonzero) digits is 8100, while the sum is 30.

The square root of 5236509 is about 2288.3419761915. The cubic root of 5236509 is about 173.6523312859.

The spelling of 5236509 in words is "five million, two hundred thirty-six thousand, five hundred nine".