422555123452 has 144 divisors (see below), whose sum is σ = 952767567360. Its totient is φ = 162117244800.

The previous prime is 422555123437. The next prime is 422555123509. The reversal of 422555123452 is 254321555224.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 236195374 + ... + 236197162.

It is an arithmetic number, because the mean of its divisors is an integer number (6616441440).

Almost surely, 2^422555123452 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 422555123452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (476383783680).

422555123452 is an abundant number, since it is smaller than the sum of its proper divisors (530212443908).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

422555123452 is a wasteful number, since it uses less digits than its factorization.

422555123452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3432 (or 3423 counting only the distinct ones).

The product of its digits is 480000, while the sum is 40.

Adding to 422555123452 its reverse (254321555224), we get a palindrome (676876678676).

The spelling of 422555123452 in words is "four hundred twenty-two billion, five hundred fifty-five million, one hundred twenty-three thousand, four hundred fifty-two".