442525 has 12 divisors (see below), whose sum is σ = 567424. Its totient is φ = 342000.

The previous prime is 442517. The next prime is 442531. The reversal of 442525 is 525244.

It is not a de Polignac number, because 442525 - 2³ = 442517 is a prime.

It is a hoax number, since the sum of its digits (22) coincides with the sum of the digits of its distinct prime factors.

442525 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 442496 and 442505.

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, 490 + ... + 1060.

2⁴⁴²⁵²⁵ is an apocalyptic number.

It is an amenable number.

442525 is a deficient number, since it is larger than the sum of its proper divisors (124899).

442525 is a wasteful number, since it uses less digits than its factorization.

442525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 612 (or 607 counting only the distinct ones).

The product of its digits is 1600, while the sum is 22.

The square root of 442525 is about 665.2255256678. The cubic root of 442525 is about 76.2042635329.

Adding to 442525 its reverse (525244), we get a palindrome (967769).

The spelling of 442525 in words is "four hundred forty-two thousand, five hundred twenty-five".