36320513 has 4 divisors (see below), whose sum is σ = 36376788. Its totient is φ = 36264240.

The previous prime is 36320507. The next prime is 36320521. The reversal of 36320513 is 31502363.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4870849 + 31449664 = 2207^2 + 5608^2 .

It is a cyclic number.

It is not a de Polignac number, because 36320513 - 2⁴ = 36320497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36320593) 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, 27158 + ... + 28463.

It is an arithmetic number, because the mean of its divisors is an integer number (9094197).

Almost surely, 2^36320513 is an apocalyptic number.

It is an amenable number.

36320513 is a deficient number, since it is larger than the sum of its proper divisors (56275).

36320513 is an equidigital number, since it uses as much as digits as its factorization.

36320513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56274.

The product of its (nonzero) digits is 1620, while the sum is 23.

The square root of 36320513 is about 6026.6502304348. The cubic root of 36320513 is about 331.1697483056.

Adding to 36320513 its reverse (31502363), we get a palindrome (67822876).

The spelling of 36320513 in words is "thirty-six million, three hundred twenty thousand, five hundred thirteen".