36532591 has 2 divisors, whose sum is σ = 36532592. Its totient is φ = 36532590.

The previous prime is 36532543. The next prime is 36532597. The reversal of 36532591 is 19523563.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (19523563) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 36532591 - 2¹⁵ = 36499823 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36532597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18266295 + 18266296.

It is an arithmetic number, because the mean of its divisors is an integer number (18266296).

Almost surely, 2^36532591 is an apocalyptic number.

36532591 is a deficient number, since it is larger than the sum of its proper divisors (1).

36532591 is an equidigital number, since it uses as much as digits as its factorization.

36532591 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24300, while the sum is 34.

The square root of 36532591 is about 6044.2196353210. The cubic root of 36532591 is about 331.8130721812.

Subtracting from 36532591 its reverse (19523563), we obtain a triangular number (17009028 = T₅₈₃₂).

The spelling of 36532591 in words is "thirty-six million, five hundred thirty-two thousand, five hundred ninety-one".