64422511 has 2 divisors, whose sum is σ = 64422512. Its totient is φ = 64422510.

The previous prime is 64422499. The next prime is 64422529. The reversal of 64422511 is 11522446.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64422511 - 2¹⁷ = 64291439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64425511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32211255 + 32211256.

It is an arithmetic number, because the mean of its divisors is an integer number (32211256).

Almost surely, 2^64422511 is an apocalyptic number.

64422511 is a deficient number, since it is larger than the sum of its proper divisors (1).

64422511 is an equidigital number, since it uses as much as digits as its factorization.

64422511 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1920, while the sum is 25.

The square root of 64422511 is about 8026.3634978737. The cubic root of 64422511 is about 400.8783013055.

Adding to 64422511 its reverse (11522446), we get a palindrome (75944957).

The spelling of 64422511 in words is "sixty-four million, four hundred twenty-two thousand, five hundred eleven".