225812532 has 24 divisors (see below), whose sum is σ = 574795872. Its totient is φ = 68428000.

The previous prime is 225812527. The next prime is 225812567. The reversal of 225812532 is 235218522.

It is a self number, because there is not a number n which added to its sum of digits gives 225812532.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 855219 + ... + 855482.

It is an arithmetic number, because the mean of its divisors is an integer number (23949828).

Almost surely, 2^225812532 is an apocalyptic number.

225812532 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

225812532 is an abundant number, since it is smaller than the sum of its proper divisors (348983340).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

225812532 is a wasteful number, since it uses less digits than its factorization.

225812532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1710719 (or 1710717 counting only the distinct ones).

The product of its digits is 9600, while the sum is 30.

The square root of 225812532 is about 15027.0599918946. The cubic root of 225812532 is about 608.9514657410.

The spelling of 225812532 in words is "two hundred twenty-five million, eight hundred twelve thousand, five hundred thirty-two".