425001 has 4 divisors (see below), whose sum is σ = 566672. Its totient is φ = 283332.

The previous prime is 424997. The next prime is 425003. The reversal of 425001 is 100524.

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 not a de Polignac number, because 425001 - 2² = 424997 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (425003) 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, 70831 + ... + 70836.

It is an arithmetic number, because the mean of its divisors is an integer number (141668).

2⁴²⁵⁰⁰¹ is an apocalyptic number.

It is an amenable number.

425001 is a deficient number, since it is larger than the sum of its proper divisors (141671).

425001 is a wasteful number, since it uses less digits than its factorization.

425001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141670.

The product of its (nonzero) digits is 40, while the sum is 12.

The square root of 425001 is about 651.9210074848. The cubic root of 425001 is about 75.1847887786.

Adding to 425001 its reverse (100524), we get a palindrome (525525).

The spelling of 425001 in words is "four hundred twenty-five thousand, one".