225988266631 has 4 divisors (see below), whose sum is σ = 225993149712. Its totient is φ = 225983383552.

The previous prime is 225988266617. The next prime is 225988266641. The reversal of 225988266631 is 136662889522.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 136662889522 = 2 ⋅68331444761.

It is a cyclic number.

It is not a de Polignac number, because 225988266631 - 2³¹ = 223840782983 is a prime.

It is a super-2 number, since 2×225988266631² (a number of 24 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225988266611) 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, 2371450 + ... + 2464903.

It is an arithmetic number, because the mean of its divisors is an integer number (56498287428).

Almost surely, 2^225988266631 is an apocalyptic number.

225988266631 is a deficient number, since it is larger than the sum of its proper divisors (4883081).

225988266631 is an equidigital number, since it uses as much as digits as its factorization.

225988266631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4883080.

The product of its digits is 14929920, while the sum is 58.

The spelling of 225988266631 in words is "two hundred twenty-five billion, nine hundred eighty-eight million, two hundred sixty-six thousand, six hundred thirty-one".