425603 has 2 divisors, whose sum is σ = 425604. Its totient is φ = 425602.

The previous prime is 425591. The next prime is 425609. The reversal of 425603 is 306524.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-425603 is a prime.

It is a super-2 number, since 2×425603² = 362275827218, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (425609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212801 + 212802.

It is an arithmetic number, because the mean of its divisors is an integer number (212802).

2⁴²⁵⁶⁰³ is an apocalyptic number.

425603 is a deficient number, since it is larger than the sum of its proper divisors (1).

425603 is an equidigital number, since it uses as much as digits as its factorization.

425603 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 425603 is about 652.3825564805. The cubic root of 425603 is about 75.2202709612.

The spelling of 425603 in words is "four hundred twenty-five thousand, six hundred three".