64242533 has 2 divisors, whose sum is σ = 64242534. Its totient is φ = 64242532.

The previous prime is 64242523. The next prime is 64242587. The reversal of 64242533 is 33524246.

64242533 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34833604 + 29408929 = 5902^2 + 5423^2 .

It is a cyclic number.

It is not a de Polignac number, because 64242533 - 2⁴ = 64242517 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 64242496 and 64242505.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64242523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32121266 + 32121267.

It is an arithmetic number, because the mean of its divisors is an integer number (32121267).

Almost surely, 2^64242533 is an apocalyptic number.

It is an amenable number.

64242533 is a deficient number, since it is larger than the sum of its proper divisors (1).

64242533 is an equidigital number, since it uses as much as digits as its factorization.

64242533 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17280, while the sum is 29.

The square root of 64242533 is about 8015.1439787442. The cubic root of 64242533 is about 400.5046401614.

Adding to 64242533 its reverse (33524246), we get a palindrome (97766779).

The spelling of 64242533 in words is "sixty-four million, two hundred forty-two thousand, five hundred thirty-three".