425525 has 6 divisors (see below), whose sum is σ = 527682. Its totient is φ = 340400.

The previous prime is 425521. The next prime is 425533. The reversal of 425525 is 525524.

It can be written as a sum of positive squares in 3 ways, for example, as 119716 + 305809 = 346^2 + 553^2 .

It is not a de Polignac number, because 425525 - 2² = 425521 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 425525.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 425525.

It is not an unprimeable number, because it can be changed into a prime (425521) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8486 + ... + 8535.

It is an arithmetic number, because the mean of its divisors is an integer number (87947).

2⁴²⁵⁵²⁵ is an apocalyptic number.

It is an amenable number.

425525 is a deficient number, since it is larger than the sum of its proper divisors (102157).

425525 is a wasteful number, since it uses less digits than its factorization.

425525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17031 (or 17026 counting only the distinct ones).

The product of its digits is 2000, while the sum is 23.

The square root of 425525 is about 652.3227728663. The cubic root of 425525 is about 75.2156754896.

Subtracting 425525 from its reverse (525524), we obtain a palindrome (99999).

The spelling of 425525 in words is "four hundred twenty-five thousand, five hundred twenty-five".