225917532 has 48 divisors (see below), whose sum is σ = 598187520. Its totient is φ = 73701936.

The previous prime is 225917513. The next prime is 225917533. The reversal of 225917532 is 235719522.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225917533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17178 + ... + 27329.

It is an arithmetic number, because the mean of its divisors is an integer number (12462240).

Almost surely, 2^225917532 is an apocalyptic number.

It is an amenable number.

225917532 is an abundant number, since it is smaller than the sum of its proper divisors (372269988).

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

225917532 is a wasteful number, since it uses less digits than its factorization.

225917532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44567 (or 44559 counting only the distinct ones).

The product of its digits is 37800, while the sum is 36.

The square root of 225917532 is about 15030.5532832295. The cubic root of 225917532 is about 609.0458360512.

It can be divided in two parts, 2259 and 17532, that added together give a palindrome (19791).

The spelling of 225917532 in words is "two hundred twenty-five million, nine hundred seventeen thousand, five hundred thirty-two".