225060556681 has 2 divisors, whose sum is σ = 225060556682. Its totient is φ = 225060556680.

The previous prime is 225060556663. The next prime is 225060556741. The reversal of 225060556681 is 186655060522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 207699859081 + 17360697600 = 455741^2 + 131760^2 .

It is a cyclic number.

It is not a de Polignac number, because 225060556681 - 2⁵ = 225060556649 is a prime.

It is a super-2 number, since 2×225060556681² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (225060556661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112530278340 + 112530278341.

It is an arithmetic number, because the mean of its divisors is an integer number (112530278341).

Almost surely, 2^225060556681 is an apocalyptic number.

It is an amenable number.

225060556681 is a deficient number, since it is larger than the sum of its proper divisors (1).

225060556681 is an equidigital number, since it uses as much as digits as its factorization.

225060556681 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864000, while the sum is 46.

The spelling of 225060556681 in words is "two hundred twenty-five billion, sixty million, five hundred fifty-six thousand, six hundred eighty-one".