422525 has 6 divisors (see below), whose sum is σ = 523962. Its totient is φ = 338000.

The previous prime is 422479. The next prime is 422537. The reversal of 422525 is 525224.

It can be written as a sum of positive squares in 3 ways, for example, as 148996 + 273529 = 386^2 + 523^2 .

It is not a de Polignac number, because 422525 - 2¹⁰ = 421501 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 422497 and 422506.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8426 + ... + 8475.

It is an arithmetic number, because the mean of its divisors is an integer number (87327).

2⁴²²⁵²⁵ is an apocalyptic number.

It is an amenable number.

422525 is a deficient number, since it is larger than the sum of its proper divisors (101437).

422525 is a wasteful number, since it uses less digits than its factorization.

422525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16911 (or 16906 counting only the distinct ones).

The product of its digits is 800, while the sum is 20.

The square root of 422525 is about 650.0192304848. The cubic root of 422525 is about 75.0384987531.

Adding to 422525 its reverse (525224), we get a palindrome (947749).

It can be divided in two parts, 4225 and 25, that multiplied together give a square (105625 = 325²).

The spelling of 422525 in words is "four hundred twenty-two thousand, five hundred twenty-five".