36663251 has 2 divisors, whose sum is σ = 36663252. Its totient is φ = 36663250.

The previous prime is 36663247. The next prime is 36663287. The reversal of 36663251 is 15236663.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 36663251 - 2² = 36663247 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (36663551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18331625 + 18331626.

It is an arithmetic number, because the mean of its divisors is an integer number (18331626).

Almost surely, 2^36663251 is an apocalyptic number.

36663251 is a deficient number, since it is larger than the sum of its proper divisors (1).

36663251 is an equidigital number, since it uses as much as digits as its factorization.

36663251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19440, while the sum is 32.

The square root of 36663251 is about 6055.0186622338. The cubic root of 36663251 is about 332.2081815961.

The spelling of 36663251 in words is "thirty-six million, six hundred sixty-three thousand, two hundred fifty-one".