425424231 has 24 divisors (see below), whose sum is σ = 670808320. Its totient is φ = 268686072.

The previous prime is 425424173. The next prime is 425424271. The reversal of 425424231 is 132424524.

425424231 is a `hidden beast` number, since 4 + 2 + 5 + 424 + 231 = 666.

It is not a de Polignac number, because 425424231 - 2¹³ = 425416039 is a prime.

It is a super-2 number, since 2×425424231² = 361971552643882722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 425424195 and 425424204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425424271) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41455 + ... + 50688.

Almost surely, 2^425424231 is an apocalyptic number.

425424231 is a deficient number, since it is larger than the sum of its proper divisors (245384089).

425424231 is an equidigital number, since it uses as much as digits as its factorization.

425424231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92177 (or 92165 counting only the distinct ones).

The product of its digits is 7680, while the sum is 27.

The square root of 425424231 is about 20625.8146748195. The cubic root of 425424231 is about 752.0973772110.

Adding to 425424231 its reverse (132424524), we get a palindrome (557848755).

The spelling of 425424231 in words is "four hundred twenty-five million, four hundred twenty-four thousand, two hundred thirty-one".