213025225 has 24 divisors (see below), whose sum is σ = 308918720. Its totient is φ = 142672320.

The previous prime is 213025201. The next prime is 213025229. The reversal of 213025225 is 522520312.

It is not a de Polignac number, because 213025225 - 2¹¹ = 213023177 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 213025196 and 213025205.

It is not an unprimeable number, because it can be changed into a prime (213025229) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6630 + ... + 21679.

Almost surely, 2^213025225 is an apocalyptic number.

213025225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

213025225 is a deficient number, since it is larger than the sum of its proper divisors (95893495).

213025225 is a wasteful number, since it uses less digits than its factorization.

213025225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28369 (or 28364 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 213025225 is about 14595.3836880022. The cubic root of 213025225 is about 597.2328363316.

Adding to 213025225 its reverse (522520312), we get a palindrome (735545537).

The spelling of 213025225 in words is "two hundred thirteen million, twenty-five thousand, two hundred twenty-five".