36505589 has 2 divisors, whose sum is σ = 36505590. Its totient is φ = 36505588.

The previous prime is 36505571. The next prime is 36505619. The reversal of 36505589 is 98550563.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33443089 + 3062500 = 5783^2 + 1750^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-36505589 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36505529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18252794 + 18252795.

It is an arithmetic number, because the mean of its divisors is an integer number (18252795).

Almost surely, 2^36505589 is an apocalyptic number.

It is an amenable number.

36505589 is a deficient number, since it is larger than the sum of its proper divisors (1).

36505589 is an equidigital number, since it uses as much as digits as its factorization.

36505589 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 162000, while the sum is 41.

The square root of 36505589 is about 6041.9855180230. The cubic root of 36505589 is about 331.7313020443.

The spelling of 36505589 in words is "thirty-six million, five hundred five thousand, five hundred eighty-nine".