422505511 has 2 divisors, whose sum is σ = 422505512. Its totient is φ = 422505510.

The previous prime is 422505497. The next prime is 422505521. The reversal of 422505511 is 115505224.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 422505511 - 2⁷ = 422505383 is a prime.

It is a super-2 number, since 2×422505511² = 357021813650742242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (422505521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211252755 + 211252756.

It is an arithmetic number, because the mean of its divisors is an integer number (211252756).

Almost surely, 2^422505511 is an apocalyptic number.

422505511 is a deficient number, since it is larger than the sum of its proper divisors (1).

422505511 is an equidigital number, since it uses as much as digits as its factorization.

422505511 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 422505511 is about 20554.9388469049. The cubic root of 422505511 is about 750.3734501639.

The spelling of 422505511 in words is "four hundred twenty-two million, five hundred five thousand, five hundred eleven".