36515935531 has 2 divisors, whose sum is σ = 36515935532. Its totient is φ = 36515935530.

The previous prime is 36515935513. The next prime is 36515935541. The reversal of 36515935531 is 13553951563.

Together with previous prime (36515935513) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is an emirp because it is prime and its reverse (13553951563) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 36515935531 - 2¹¹ = 36515933483 is a prime.

It is a super-2 number, since 2×36515935531² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (36515935541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18257967765 + 18257967766.

It is an arithmetic number, because the mean of its divisors is an integer number (18257967766).

Almost surely, 2^36515935531 is an apocalyptic number.

36515935531 is a deficient number, since it is larger than the sum of its proper divisors (1).

36515935531 is an equidigital number, since it uses as much as digits as its factorization.

36515935531 is an evil number, because the sum of its binary digits is even.

The product of its digits is 911250, while the sum is 46.

The spelling of 36515935531 in words is "thirty-six billion, five hundred fifteen million, nine hundred thirty-five thousand, five hundred thirty-one".