36561411 has 12 divisors (see below), whose sum is σ = 53089920. Its totient is φ = 24245520.

The previous prime is 36561403. The next prime is 36561433. The reversal of 36561411 is 11416563.

36561411 is a `hidden beast` number, since 3 + 656 + 1 + 4 + 1 + 1 = 666.

It is not a de Polignac number, because 36561411 - 2³ = 36561403 is a prime.

It is not an unprimeable number, because it can be changed into a prime (36561401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8916 + ... + 12353.

It is an arithmetic number, because the mean of its divisors is an integer number (4424160).

Almost surely, 2^36561411 is an apocalyptic number.

36561411 is a deficient number, since it is larger than the sum of its proper divisors (16528509).

36561411 is a wasteful number, since it uses less digits than its factorization.

36561411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21466 (or 21463 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 36561411 is about 6046.6032613361. The cubic root of 36561411 is about 331.9003033257.

Adding to 36561411 its reverse (11416563), we get a palindrome (47977974).

It can be divided in two parts, 365 and 61411, that added together give a triangular number (61776 = T₃₅₁).

The spelling of 36561411 in words is "thirty-six million, five hundred sixty-one thousand, four hundred eleven".