425023 has 4 divisors (see below), whose sum is σ = 426328. Its totient is φ = 423720.

The previous prime is 425003. The next prime is 425027. The reversal of 425023 is 320524.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-425023 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 424988 and 425006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 313 + ... + 973.

It is an arithmetic number, because the mean of its divisors is an integer number (106582).

2⁴²⁵⁰²³ is an apocalyptic number.

425023 is a deficient number, since it is larger than the sum of its proper divisors (1305).

425023 is an equidigital number, since it uses as much as digits as its factorization.

425023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1304.

The product of its (nonzero) digits is 240, while the sum is 16.

The square root of 425023 is about 651.9378804764. The cubic root of 425023 is about 75.1860860593.

Adding to 425023 its reverse (320524), we get a palindrome (745547).

The spelling of 425023 in words is "four hundred twenty-five thousand, twenty-three".