425344433 has 4 divisors (see below), whose sum is σ = 435236208. Its totient is φ = 415452660.

The previous prime is 425344429. The next prime is 425344441. The reversal of 425344433 is 334443524.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 425344433 - 2² = 425344429 is a prime.

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 425344433.

It is not an unprimeable number, because it can be changed into a prime (425344483) 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, 4945823 + ... + 4945908.

It is an arithmetic number, because the mean of its divisors is an integer number (108809052).

Almost surely, 2^425344433 is an apocalyptic number.

425344433 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

It is an amenable number.

425344433 is a deficient number, since it is larger than the sum of its proper divisors (9891775).

425344433 is an equidigital number, since it uses as much as digits as its factorization.

425344433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9891774.

The product of its digits is 69120, while the sum is 32.

The square root of 425344433 is about 20623.8801635386. The cubic root of 425344433 is about 752.0503499419.

Adding to 425344433 its reverse (334443524), we get a palindrome (759787957).

Subtracting from 425344433 its reverse (334443524), we obtain a palindrome (90900909).

The spelling of 425344433 in words is "four hundred twenty-five million, three hundred forty-four thousand, four hundred thirty-three".