422511 has 4 divisors (see below), whose sum is σ = 563352. Its totient is φ = 281672.

The previous prime is 422479. The next prime is 422537. The reversal of 422511 is 115224.

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 422511 - 2⁵ = 422479 is a prime.

It is a D-number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 422511.

It is not an unprimeable number, because it can be changed into a prime (422551) 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, 70416 + ... + 70421.

It is an arithmetic number, because the mean of its divisors is an integer number (140838).

2⁴²²⁵¹¹ is an apocalyptic number.

422511 is a deficient number, since it is larger than the sum of its proper divisors (140841).

422511 is a wasteful number, since it uses less digits than its factorization.

422511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140840.

The product of its digits is 80, while the sum is 15.

The square root of 422511 is about 650.0084614834. The cubic root of 422511 is about 75.0376699654.

Adding to 422511 its reverse (115224), we get a palindrome (537735).

The spelling of 422511 in words is "four hundred twenty-two thousand, five hundred eleven".