225060556721 has 48 divisors (see below), whose sum is σ = 320493398400. Its totient is φ = 153361486080.

The previous prime is 225060556681. The next prime is 225060556741. The reversal of 225060556721 is 127655060522.

It is not a de Polignac number, because 225060556721 - 2⁶ = 225060556657 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (225060556741) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 328676 + ... + 747093.

It is an arithmetic number, because the mean of its divisors is an integer number (6676945800).

Almost surely, 2^225060556721 is an apocalyptic number.

It is an amenable number.

225060556721 is a deficient number, since it is larger than the sum of its proper divisors (95432841679).

225060556721 is a wasteful number, since it uses less digits than its factorization.

225060556721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1075830 (or 1075819 counting only the distinct ones).

The product of its (nonzero) digits is 252000, while the sum is 41.

The spelling of 225060556721 in words is "two hundred twenty-five billion, sixty million, five hundred fifty-six thousand, seven hundred twenty-one".