64836533 has 2 divisors, whose sum is σ = 64836534. Its totient is φ = 64836532.

The previous prime is 64836523. The next prime is 64836557. The reversal of 64836533 is 33563846.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 58400164 + 6436369 = 7642^2 + 2537^2 .

It is a cyclic number.

It is not a de Polignac number, because 64836533 - 2²⁴ = 48059317 is a prime.

It is a super-2 number, since 2×64836533² = 8407552022920178, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64836523) 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, 32418266 + 32418267.

It is an arithmetic number, because the mean of its divisors is an integer number (32418267).

Almost surely, 2^64836533 is an apocalyptic number.

It is an amenable number.

64836533 is a deficient number, since it is larger than the sum of its proper divisors (1).

64836533 is an equidigital number, since it uses as much as digits as its factorization.

64836533 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 155520, while the sum is 38.

The square root of 64836533 is about 8052.1135734663. The cubic root of 64836533 is about 401.7352385659.

The spelling of 64836533 in words is "sixty-four million, eight hundred thirty-six thousand, five hundred thirty-three".