425243231 has 8 divisors (see below), whose sum is σ = 487092864. Its totient is φ = 363668760.

The previous prime is 425243227. The next prime is 425243233. The reversal of 425243231 is 132342524.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 425243231 - 2² = 425243227 is a prime.

It is a super-2 number, since 2×425243231² = 361663611022638722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 425243231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425243233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65465 + ... + 71666.

It is an arithmetic number, because the mean of its divisors is an integer number (60886608).

Almost surely, 2^425243231 is an apocalyptic number.

425243231 is a deficient number, since it is larger than the sum of its proper divisors (61849633).

425243231 is a wasteful number, since it uses less digits than its factorization.

425243231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137581.

The product of its digits is 5760, while the sum is 26.

The square root of 425243231 is about 20621.4265025483. The cubic root of 425243231 is about 751.9907002160.

Adding to 425243231 its reverse (132342524), we get a palindrome (557585755).

The spelling of 425243231 in words is "four hundred twenty-five million, two hundred forty-three thousand, two hundred thirty-one".