225110663549 has 4 divisors (see below), whose sum is σ = 230601167580. Its totient is φ = 219620159520.

The previous prime is 225110663507. The next prime is 225110663599. The reversal of 225110663549 is 945366011522.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 945366011522 = 2 ⋅472683005761.

It can be written as a sum of positive squares in 2 ways, for example, as 50789383225 + 174321280324 = 225365^2 + 417518^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-225110663549 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 (225110663599) 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, 2745251954 + ... + 2745252035.

It is an arithmetic number, because the mean of its divisors is an integer number (57650291895).

Almost surely, 2^225110663549 is an apocalyptic number.

It is an amenable number.

225110663549 is a deficient number, since it is larger than the sum of its proper divisors (5490504031).

225110663549 is an equidigital number, since it uses as much as digits as its factorization.

225110663549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5490504030.

The product of its (nonzero) digits is 388800, while the sum is 44.

The spelling of 225110663549 in words is "two hundred twenty-five billion, one hundred ten million, six hundred sixty-three thousand, five hundred forty-nine".