225506556463 has 2 divisors, whose sum is σ = 225506556464. Its totient is φ = 225506556462.

The previous prime is 225506556461. The next prime is 225506556487. The reversal of 225506556463 is 364655605522.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 225506556463 - 2¹ = 225506556461 is a prime.

Together with 225506556461, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225506556461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112753278231 + 112753278232.

It is an arithmetic number, because the mean of its divisors is an integer number (112753278232).

Almost surely, 2^225506556463 is an apocalyptic number.

225506556463 is a deficient number, since it is larger than the sum of its proper divisors (1).

225506556463 is an equidigital number, since it uses as much as digits as its factorization.

225506556463 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480000, while the sum is 49.

The spelling of 225506556463 in words is "two hundred twenty-five billion, five hundred six million, five hundred fifty-six thousand, four hundred sixty-three".