225635458427647 has 2 divisors, whose sum is σ = 225635458427648. Its totient is φ = 225635458427646.

The previous prime is 225635458427633. The next prime is 225635458427651. The reversal of 225635458427647 is 746724854536522.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 225635458427647 - 2²³ = 225635450039039 is a prime.

It is a super-2 number, since 2×225635458427647² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225635458427677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112817729213823 + 112817729213824.

It is an arithmetic number, because the mean of its divisors is an integer number (112817729213824).

Almost surely, 2^{225635458427647} is an apocalyptic number.

225635458427647 is a deficient number, since it is larger than the sum of its proper divisors (1).

225635458427647 is an equidigital number, since it uses as much as digits as its factorization.

225635458427647 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2709504000, while the sum is 70.

The spelling of 225635458427647 in words is "two hundred twenty-five trillion, six hundred thirty-five billion, four hundred fifty-eight million, four hundred twenty-seven thousand, six hundred forty-seven".