36508261 has 2 divisors, whose sum is σ = 36508262. Its totient is φ = 36508260.

The previous prime is 36508229. The next prime is 36508273. The reversal of 36508261 is 16280563.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26204161 + 10304100 = 5119^2 + 3210^2 .

It is a cyclic number.

It is not a de Polignac number, because 36508261 - 2⁵ = 36508229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33508261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18254130 + 18254131.

It is an arithmetic number, because the mean of its divisors is an integer number (18254131).

Almost surely, 2^36508261 is an apocalyptic number.

It is an amenable number.

36508261 is a deficient number, since it is larger than the sum of its proper divisors (1).

36508261 is an equidigital number, since it uses as much as digits as its factorization.

36508261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 36508261 is about 6042.2066333418. The cubic root of 36508261 is about 331.7393954572.

It can be divided in two parts, 3650 and 8261, that added together give a palindrome (11911).

The spelling of 36508261 in words is "thirty-six million, five hundred eight thousand, two hundred sixty-one".