8422525 has 6 divisors (see below), whose sum is σ = 10443962. Its totient is φ = 6738000.

The previous prime is 8422511. The next prime is 8422543. The reversal of 8422525 is 5252248.

It can be written as a sum of positive squares in 3 ways, for example, as 6724 + 8415801 = 82^2 + 2901^2 .

It is not a de Polignac number, because 8422525 - 2⁵ = 8422493 is a prime.

It is an Ulam number.

It is a Duffinian number.

8422525 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 8422493 and 8422502.

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, 168426 + ... + 168475.

Almost surely, 2^8422525 is an apocalyptic number.

It is an amenable number.

8422525 is a deficient number, since it is larger than the sum of its proper divisors (2021437).

8422525 is a wasteful number, since it uses less digits than its factorization.

8422525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336911 (or 336906 counting only the distinct ones).

The product of its digits is 6400, while the sum is 28.

The square root of 8422525 is about 2902.1586793282. The cubic root of 8422525 is about 203.4608102066.

The spelling of 8422525 in words is "eight million, four hundred twenty-two thousand, five hundred twenty-five".