422331255525 has 24 divisors (see below), whose sum is σ = 708676057504. Its totient is φ = 221881492800.

The previous prime is 422331255503. The next prime is 422331255587. The reversal of 422331255525 is 525552133224.

It is a de Polignac number, because none of the positive numbers 2^k-422331255525 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42017986 + ... + 42028035.

Almost surely, 2^422331255525 is an apocalyptic number.

It is an amenable number.

422331255525 is a deficient number, since it is larger than the sum of its proper divisors (286344801979).

422331255525 is a wasteful number, since it uses less digits than its factorization.

422331255525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84046101 (or 84046096 counting only the distinct ones).

The product of its digits is 360000, while the sum is 39.

Adding to 422331255525 its reverse (525552133224), we get a palindrome (947883388749).

The spelling of 422331255525 in words is "four hundred twenty-two billion, three hundred thirty-one million, two hundred fifty-five thousand, five hundred twenty-five".