225355757677 has 2 divisors, whose sum is σ = 225355757678. Its totient is φ = 225355757676.

The previous prime is 225355757659. The next prime is 225355757681. The reversal of 225355757677 is 776757553522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 213419976676 + 11935781001 = 461974^2 + 109251^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-225355757677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225355757617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112677878838 + 112677878839.

It is an arithmetic number, because the mean of its divisors is an integer number (112677878839).

Almost surely, 2^225355757677 is an apocalyptic number.

It is an amenable number.

225355757677 is a deficient number, since it is larger than the sum of its proper divisors (1).

225355757677 is an equidigital number, since it uses as much as digits as its factorization.

225355757677 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108045000, while the sum is 61.

The spelling of 225355757677 in words is "two hundred twenty-five billion, three hundred fifty-five million, seven hundred fifty-seven thousand, six hundred seventy-seven".