36265591 has 2 divisors, whose sum is σ = 36265592. Its totient is φ = 36265590.

The previous prime is 36265571. The next prime is 36265609. The reversal of 36265591 is 19556263.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 36265591 - 2¹³ = 36257399 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 36265591.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36265571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18132795 + 18132796.

It is an arithmetic number, because the mean of its divisors is an integer number (18132796).

Almost surely, 2^36265591 is an apocalyptic number.

36265591 is a deficient number, since it is larger than the sum of its proper divisors (1).

36265591 is an equidigital number, since it uses as much as digits as its factorization.

36265591 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48600, while the sum is 37.

The square root of 36265591 is about 6022.0919122843. The cubic root of 36265591 is about 331.0027381780.

It can be divided in two parts, 36265 and 591, that added together give a triangular number (36856 = T₂₇₁).

The spelling of 36265591 in words is "thirty-six million, two hundred sixty-five thousand, five hundred ninety-one".