225720231736 has 16 divisors (see below), whose sum is σ = 424720935000. Its totient is φ = 112461315744.

The previous prime is 225720231733. The next prime is 225720231739. The reversal of 225720231736 is 637132027522.

It is an interprime number because it is at equal distance from previous prime (225720231733) and next prime (225720231739).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225720231733) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49847611 + ... + 49852138.

Almost surely, 2^225720231736 is an apocalyptic number.

It is an amenable number.

225720231736 is a deficient number, since it is larger than the sum of its proper divisors (199000703264).

225720231736 is a wasteful number, since it uses less digits than its factorization.

225720231736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99700038 (or 99700034 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 40.

The spelling of 225720231736 in words is "two hundred twenty-five billion, seven hundred twenty million, two hundred thirty-one thousand, seven hundred thirty-six".