422512511 has 4 divisors (see below), whose sum is σ = 429673800. Its totient is φ = 415351224.

The previous prime is 422512501. The next prime is 422512523. The reversal of 422512511 is 115215224.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 422512511 - 2¹⁰ = 422511487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422512501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3580556 + ... + 3580673.

It is an arithmetic number, because the mean of its divisors is an integer number (107418450).

Almost surely, 2^422512511 is an apocalyptic number.

422512511 is a deficient number, since it is larger than the sum of its proper divisors (7161289).

422512511 is an equidigital number, since it uses as much as digits as its factorization.

422512511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7161288.

The product of its digits is 800, while the sum is 23.

The square root of 422512511 is about 20555.1091215785. The cubic root of 422512511 is about 750.3775941613.

Adding to 422512511 its reverse (115215224), we get a palindrome (537727735).

The spelling of 422512511 in words is "four hundred twenty-two million, five hundred twelve thousand, five hundred eleven".