425044231 has 4 divisors (see below), whose sum is σ = 447415000. Its totient is φ = 402673464.

The previous prime is 425044223. The next prime is 425044237. The reversal of 425044231 is 132440524.

It is a happy number.

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 425044231 - 2³ = 425044223 is a prime.

It is a super-2 number, since 2×425044231² = 361325196612762722, 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 = 425044196 and 425044205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425044237) 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, 11185356 + ... + 11185393.

It is an arithmetic number, because the mean of its divisors is an integer number (111853750).

Almost surely, 2^425044231 is an apocalyptic number.

425044231 is a deficient number, since it is larger than the sum of its proper divisors (22370769).

425044231 is a wasteful number, since it uses less digits than its factorization.

425044231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22370768.

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

The square root of 425044231 is about 20616.6008595015. The cubic root of 425044231 is about 751.8733795176.

Adding to 425044231 its reverse (132440524), we get a palindrome (557484755).

The spelling of 425044231 in words is "four hundred twenty-five million, forty-four thousand, two hundred thirty-one".