36361565531 has 2 divisors, whose sum is σ = 36361565532. Its totient is φ = 36361565530.

The previous prime is 36361565521. The next prime is 36361565561. The reversal of 36361565531 is 13556516363.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-36361565531 is a prime.

It is a super-2 number, since 2×36361565531² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (36361565521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18180782765 + 18180782766.

It is an arithmetic number, because the mean of its divisors is an integer number (18180782766).

Almost surely, 2^36361565531 is an apocalyptic number.

36361565531 is a deficient number, since it is larger than the sum of its proper divisors (1).

36361565531 is an equidigital number, since it uses as much as digits as its factorization.

36361565531 is an evil number, because the sum of its binary digits is even.

The product of its digits is 729000, while the sum is 44.

The spelling of 36361565531 in words is "thirty-six billion, three hundred sixty-one million, five hundred sixty-five thousand, five hundred thirty-one".