225504111391 has 4 divisors (see below), whose sum is σ = 242850581512. Its totient is φ = 208157641272.

The previous prime is 225504111383. The next prime is 225504111403. The reversal of 225504111391 is 193111405522.

225504111391 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 225504111391 - 2³ = 225504111383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225504111691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8673235041 + ... + 8673235066.

It is an arithmetic number, because the mean of its divisors is an integer number (60712645378).

Almost surely, 2^225504111391 is an apocalyptic number.

225504111391 is a deficient number, since it is larger than the sum of its proper divisors (17346470121).

225504111391 is a wasteful number, since it uses less digits than its factorization.

225504111391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17346470120.

The product of its (nonzero) digits is 10800, while the sum is 34.

The spelling of 225504111391 in words is "two hundred twenty-five billion, five hundred four million, one hundred eleven thousand, three hundred ninety-one".