225536525 has 12 divisors (see below), whose sum is σ = 282383712. Its totient is φ = 178675440.

The previous prime is 225536513. The next prime is 225536533. The reversal of 225536525 is 525635522.

225536525 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-225536525 is a prime.

It is a Duffinian number.

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, 41219 + ... + 46368.

It is an arithmetic number, because the mean of its divisors is an integer number (23531976).

Almost surely, 2^225536525 is an apocalyptic number.

225536525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

225536525 is a deficient number, since it is larger than the sum of its proper divisors (56847187).

225536525 is a wasteful number, since it uses less digits than its factorization.

225536525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87700 (or 87695 counting only the distinct ones).

The product of its digits is 90000, while the sum is 35.

The square root of 225536525 is about 15017.8735179119. The cubic root of 225536525 is about 608.7032607504.

The spelling of 225536525 in words is "two hundred twenty-five million, five hundred thirty-six thousand, five hundred twenty-five".