425118439 has 4 divisors (see below), whose sum is σ = 450125424. Its totient is φ = 400111456.

The previous prime is 425118433. The next prime is 425118451. The reversal of 425118439 is 934811524.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 425118439 - 2¹³ = 425110247 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 425118398 and 425118407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425118433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12503467 + ... + 12503500.

It is an arithmetic number, because the mean of its divisors is an integer number (112531356).

Almost surely, 2^425118439 is an apocalyptic number.

425118439 is a deficient number, since it is larger than the sum of its proper divisors (25006985).

425118439 is a wasteful number, since it uses less digits than its factorization.

425118439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25006984.

The product of its digits is 34560, while the sum is 37.

The square root of 425118439 is about 20618.4004956738. The cubic root of 425118439 is about 751.9171332174.

The spelling of 425118439 in words is "four hundred twenty-five million, one hundred eighteen thousand, four hundred thirty-nine".