425279 has 2 divisors, whose sum is σ = 425280. Its totient is φ = 425278.

The previous prime is 425273. The next prime is 425281. The reversal of 425279 is 972524.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-425279 is a prime.

Together with 425281, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (425273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212639 + 212640.

It is an arithmetic number, because the mean of its divisors is an integer number (212640).

2⁴²⁵²⁷⁹ is an apocalyptic number.

425279 is a deficient number, since it is larger than the sum of its proper divisors (1).

425279 is an equidigital number, since it uses as much as digits as its factorization.

425279 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5040, while the sum is 29.

The square root of 425279 is about 652.1341886453. The cubic root of 425279 is about 75.2011783994.

The spelling of 425279 in words is "four hundred twenty-five thousand, two hundred seventy-nine".