422725 has 12 divisors (see below), whose sum is σ = 539524. Its totient is φ = 328320.

The previous prime is 422711. The next prime is 422749. The reversal of 422725 is 527224.

422725 = 36² + 37² + ... + 109².

It can be written as a sum of positive squares in 6 ways, for example, as 34596 + 388129 = 186^2 + 623^2 .

It is not a de Polignac number, because 422725 - 2¹¹ = 420677 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 422696 and 422705.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 697 + ... + 1153.

2⁴²²⁷²⁵ is an apocalyptic number.

It is an amenable number.

422725 is a deficient number, since it is larger than the sum of its proper divisors (116799).

422725 is a wasteful number, since it uses less digits than its factorization.

422725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 504 (or 499 counting only the distinct ones).

The product of its digits is 1120, while the sum is 22.

The square root of 422725 is about 650.1730538864. The cubic root of 422725 is about 75.0503365792.

Adding to 422725 its reverse (527224), we get a palindrome (949949).

The spelling of 422725 in words is "four hundred twenty-two thousand, seven hundred twenty-five".