225111517 has 4 divisors (see below), whose sum is σ = 225141696. Its totient is φ = 225081340.

The previous prime is 225111503. The next prime is 225111539. The reversal of 225111517 is 715111522.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 225111517 - 2⁷ = 225111389 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 225111491 and 225111500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225111217) 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, 5142 + ... + 21832.

It is an arithmetic number, because the mean of its divisors is an integer number (56285424).

Almost surely, 2^225111517 is an apocalyptic number.

It is an amenable number.

225111517 is a deficient number, since it is larger than the sum of its proper divisors (30179).

225111517 is a wasteful number, since it uses less digits than its factorization.

225111517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30178.

The product of its digits is 700, while the sum is 25.

The square root of 225111517 is about 15003.7167728533. The cubic root of 225111517 is about 608.3206672453.

The spelling of 225111517 in words is "two hundred twenty-five million, one hundred eleven thousand, five hundred seventeen".