420064511 has 2 divisors, whose sum is σ = 420064512. Its totient is φ = 420064510.

The previous prime is 420064499. The next prime is 420064531. The reversal of 420064511 is 115460024.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 420064511 - 2¹⁸ = 419802367 is a prime.

It is a super-3 number, since 3×420064511³ (a number of 27 digits) contains 333 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (420064531) 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, 210032255 + 210032256.

It is an arithmetic number, because the mean of its divisors is an integer number (210032256).

Almost surely, 2^420064511 is an apocalyptic number.

420064511 is a deficient number, since it is larger than the sum of its proper divisors (1).

420064511 is an equidigital number, since it uses as much as digits as its factorization.

420064511 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 420064511 is about 20495.4753787269. The cubic root of 420064511 is about 748.9255791912.

The spelling of 420064511 in words is "four hundred twenty million, sixty-four thousand, five hundred eleven".