64222507 has 2 divisors, whose sum is σ = 64222508. Its totient is φ = 64222506.

The previous prime is 64222471. The next prime is 64222513. The reversal of 64222507 is 70522246.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64222507 - 2¹¹ = 64220459 is a prime.

It is not a weakly prime, because it can be changed into another prime (64222517) 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, 32111253 + 32111254.

It is an arithmetic number, because the mean of its divisors is an integer number (32111254).

Almost surely, 2^64222507 is an apocalyptic number.

64222507 is a deficient number, since it is larger than the sum of its proper divisors (1).

64222507 is an equidigital number, since it uses as much as digits as its factorization.

64222507 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 64222507 is about 8013.8946212188. The cubic root of 64222507 is about 400.4630200742.

The spelling of 64222507 in words is "sixty-four million, two hundred twenty-two thousand, five hundred seven".