225934478257 has 2 divisors, whose sum is σ = 225934478258. Its totient is φ = 225934478256.

The previous prime is 225934478219. The next prime is 225934478261. The reversal of 225934478257 is 752874439522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 130231487376 + 95702990881 = 360876^2 + 309359^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-225934478257 is a prime.

It is not a weakly prime, because it can be changed into another prime (225934478057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112967239128 + 112967239129.

It is an arithmetic number, because the mean of its divisors is an integer number (112967239129).

Almost surely, 2^225934478257 is an apocalyptic number.

It is an amenable number.

225934478257 is a deficient number, since it is larger than the sum of its proper divisors (1).

225934478257 is an equidigital number, since it uses as much as digits as its factorization.

225934478257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 33868800, while the sum is 58.

The spelling of 225934478257 in words is "two hundred twenty-five billion, nine hundred thirty-four million, four hundred seventy-eight thousand, two hundred fifty-seven".