422523 has 8 divisors (see below), whose sum is σ = 626000. Its totient is φ = 281664.

The previous prime is 422479. The next prime is 422537. The reversal of 422523 is 325224.

It is not a de Polignac number, because 422523 - 2⁶ = 422459 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 422496 and 422505.

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 422523.

It is not an unprimeable number, because it can be changed into a prime (422563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7798 + ... + 7851.

It is an arithmetic number, because the mean of its divisors is an integer number (78250).

2⁴²²⁵²³ is an apocalyptic number.

422523 is a deficient number, since it is larger than the sum of its proper divisors (203477).

422523 is a wasteful number, since it uses less digits than its factorization.

422523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15658 (or 15652 counting only the distinct ones).

The product of its digits is 480, while the sum is 18.

The square root of 422523 is about 650.0176920669. The cubic root of 422523 is about 75.0383803560.

Adding to 422523 its reverse (325224), we get a palindrome (747747).

It can be divided in two parts, 42252 and 3, that multiplied together give a triangular number (126756 = T₅₀₃).

The spelling of 422523 in words is "four hundred twenty-two thousand, five hundred twenty-three".