225551066613 has 4 divisors (see below), whose sum is σ = 300734755488. Its totient is φ = 150367377740.

The previous prime is 225551066603. The next prime is 225551066633. The reversal of 225551066613 is 316660155522.

225551066613 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 225551066613 - 2⁴ = 225551066597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225551066603) 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, 37591844433 + ... + 37591844438.

It is an arithmetic number, because the mean of its divisors is an integer number (75183688872).

Almost surely, 2^225551066613 is an apocalyptic number.

It is an amenable number.

225551066613 is a deficient number, since it is larger than the sum of its proper divisors (75183688875).

225551066613 is an equidigital number, since it uses as much as digits as its factorization.

225551066613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75183688874.

The product of its (nonzero) digits is 324000, while the sum is 42.

The spelling of 225551066613 in words is "two hundred twenty-five billion, five hundred fifty-one million, sixty-six thousand, six hundred thirteen".