225275727191 has 4 divisors (see below), whose sum is σ = 225826524000. Its totient is φ = 224724930384.

The previous prime is 225275727163. The next prime is 225275727203. The reversal of 225275727191 is 191727572522.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 225275727191 - 2²² = 225271532887 is a prime.

It is a super-2 number, since 2×225275727191² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225275723191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 275397791 + ... + 275398608.

It is an arithmetic number, because the mean of its divisors is an integer number (56456631000).

Almost surely, 2^225275727191 is an apocalyptic number.

225275727191 is a deficient number, since it is larger than the sum of its proper divisors (550796809).

225275727191 is an equidigital number, since it uses as much as digits as its factorization.

225275727191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550796808.

The product of its digits is 1234800, while the sum is 50.

The spelling of 225275727191 in words is "two hundred twenty-five billion, two hundred seventy-five million, seven hundred twenty-seven thousand, one hundred ninety-one".