6536249 has 6 divisors (see below), whose sum is σ = 6634170. Its totient is φ = 6438960.

The previous prime is 6536239. The next prime is 6536251. The reversal of 6536249 is 9426356.

It can be written as a sum of positive squares in only one way, i.e., 4700224 + 1836025 = 2168^2 + 1355^2 .

It is not a de Polignac number, because 6536249 - 2⁸ = 6535993 is a prime.

It is a Duffinian number.

Its product of digits (38880) is a multiple of the sum of its prime divisors (360).

It is not an unprimeable number, because it can be changed into a prime (6536219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 23984 + ... + 24254.

It is an arithmetic number, because the mean of its divisors is an integer number (1105695).

Almost surely, 2^6536249 is an apocalyptic number.

It is an amenable number.

6536249 is a deficient number, since it is larger than the sum of its proper divisors (97921).

6536249 is an frugal number, since it uses more digits than its factorization.

6536249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 631 (or 360 counting only the distinct ones).

The product of its digits is 38880, while the sum is 35.

The square root of 6536249 is about 2556.6088867873. The cubic root of 6536249 is about 186.9718374854.

The spelling of 6536249 in words is "six million, five hundred thirty-six thousand, two hundred forty-nine".