225720405133 has 4 divisors (see below), whose sum is σ = 226578657888. Its totient is φ = 224862152380.

The previous prime is 225720405101. The next prime is 225720405139. The reversal of 225720405133 is 331504027522.

225720405133 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, and also an emirpimes, since its reverse is a distinct semiprime: 331504027522 = 2 ⋅165752013761.

It is a cyclic number.

It is not a de Polignac number, because 225720405133 - 2⁵ = 225720405101 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 (225720405139) 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, 429125983 + ... + 429126508.

It is an arithmetic number, because the mean of its divisors is an integer number (56644664472).

Almost surely, 2^225720405133 is an apocalyptic number.

It is an amenable number.

225720405133 is a deficient number, since it is larger than the sum of its proper divisors (858252755).

225720405133 is an equidigital number, since it uses as much as digits as its factorization.

225720405133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 858252754.

The product of its (nonzero) digits is 50400, while the sum is 34.

The spelling of 225720405133 in words is "two hundred twenty-five billion, seven hundred twenty million, four hundred five thousand, one hundred thirty-three".