36564881 has 2 divisors, whose sum is σ = 36564882. Its totient is φ = 36564880.

The previous prime is 36564863. The next prime is 36564887. The reversal of 36564881 is 18846563.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33825856 + 2739025 = 5816^2 + 1655^2 .

It is a cyclic number.

It is not a de Polignac number, because 36564881 - 2¹⁸ = 36302737 is a prime.

It is a super-2 number, since 2×36564881² = 2673981045088322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (36564887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18282440 + 18282441.

It is an arithmetic number, because the mean of its divisors is an integer number (18282441).

Almost surely, 2^36564881 is an apocalyptic number.

It is an amenable number.

36564881 is a deficient number, since it is larger than the sum of its proper divisors (1).

36564881 is an equidigital number, since it uses as much as digits as its factorization.

36564881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 138240, while the sum is 41.

The square root of 36564881 is about 6046.8901924874. The cubic root of 36564881 is about 331.9108030811.

The spelling of 36564881 in words is "thirty-six million, five hundred sixty-four thousand, eight hundred eighty-one".