225531736 has 8 divisors (see below), whose sum is σ = 422872020. Its totient is φ = 112765864.

The previous prime is 225531731. The next prime is 225531737. The reversal of 225531736 is 637135522.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225531731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14095726 + ... + 14095741.

Almost surely, 2^225531736 is an apocalyptic number.

It is an amenable number.

225531736 is a deficient number, since it is larger than the sum of its proper divisors (197340284).

225531736 is a wasteful number, since it uses less digits than its factorization.

225531736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28191473 (or 28191469 counting only the distinct ones).

The product of its digits is 37800, while the sum is 34.

The square root of 225531736 is about 15017.7140737197. The cubic root of 225531736 is about 608.6989523566.

The spelling of 225531736 in words is "two hundred twenty-five million, five hundred thirty-one thousand, seven hundred thirty-six".