36551027561 has 2 divisors, whose sum is σ = 36551027562. Its totient is φ = 36551027560.

The previous prime is 36551027521. The next prime is 36551027581. The reversal of 36551027561 is 16572015563.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26666890000 + 9884137561 = 163300^2 + 99419^2 .

It is an emirp because it is prime and its reverse (16572015563) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 36551027561 - 2¹⁸ = 36550765417 is a prime.

It is not a weakly prime, because it can be changed into another prime (36551027521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18275513780 + 18275513781.

It is an arithmetic number, because the mean of its divisors is an integer number (18275513781).

Almost surely, 2^36551027561 is an apocalyptic number.

It is an amenable number.

36551027561 is a deficient number, since it is larger than the sum of its proper divisors (1).

36551027561 is an equidigital number, since it uses as much as digits as its factorization.

36551027561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 189000, while the sum is 41.

It can be divided in two parts, 3655102 and 7561, that added together give a palindrome (3662663).

The spelling of 36551027561 in words is "thirty-six billion, five hundred fifty-one million, twenty-seven thousand, five hundred sixty-one".