425224231 has 4 divisors (see below), whose sum is σ = 425361832. Its totient is φ = 425086632.

The previous prime is 425224223. The next prime is 425224279. The reversal of 425224231 is 132422524.

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 425224231 - 2³ = 425224223 is a prime.

It is a super-2 number, since 2×425224231² = 361631293259082722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 425224196 and 425224205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425224211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64056 + ... + 70381.

It is an arithmetic number, because the mean of its divisors is an integer number (106340458).

Almost surely, 2^425224231 is an apocalyptic number.

425224231 is a deficient number, since it is larger than the sum of its proper divisors (137601).

425224231 is a wasteful number, since it uses less digits than its factorization.

425224231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137600.

The product of its digits is 3840, while the sum is 25.

The square root of 425224231 is about 20620.9658115230. The cubic root of 425224231 is about 751.9795003230.

Adding to 425224231 its reverse (132422524), we get a palindrome (557646755).

The spelling of 425224231 in words is "four hundred twenty-five million, two hundred twenty-four thousand, two hundred thirty-one".