64422529 has 2 divisors, whose sum is σ = 64422530. Its totient is φ = 64422528.

The previous prime is 64422511. The next prime is 64422539. The reversal of 64422529 is 92522446.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64400625 + 21904 = 8025^2 + 148^2 .

It is a cyclic number.

It is not a de Polignac number, because 64422529 - 2⁵ = 64422497 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 64422494 and 64422503.

It is not a weakly prime, because it can be changed into another prime (64422539) 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 as a sum of consecutive naturals, namely, 32211264 + 32211265.

It is an arithmetic number, because the mean of its divisors is an integer number (32211265).

Almost surely, 2^64422529 is an apocalyptic number.

It is an amenable number.

64422529 is a deficient number, since it is larger than the sum of its proper divisors (1).

64422529 is an equidigital number, since it uses as much as digits as its factorization.

64422529 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34560, while the sum is 34.

The square root of 64422529 is about 8026.3646191785. The cubic root of 64422529 is about 400.8783386414.

The spelling of 64422529 in words is "sixty-four million, four hundred twenty-two thousand, five hundred twenty-nine".