63755255791 has 2 divisors, whose sum is σ = 63755255792. Its totient is φ = 63755255790.

The previous prime is 63755255719. The next prime is 63755255803. The reversal of 63755255791 is 19755255736.

It is a happy number.

Together with previous prime (63755255719) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 63755255791 - 2¹¹ = 63755253743 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63755252791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31877627895 + 31877627896.

It is an arithmetic number, because the mean of its divisors is an integer number (31877627896).

Almost surely, 2^63755255791 is an apocalyptic number.

63755255791 is a deficient number, since it is larger than the sum of its proper divisors (1).

63755255791 is an equidigital number, since it uses as much as digits as its factorization.

63755255791 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9922500, while the sum is 55.

Subtracting from 63755255791 its sum of digits (55), we obtain a palindrome (63755255736).

The spelling of 63755255791 in words is "sixty-three billion, seven hundred fifty-five million, two hundred fifty-five thousand, seven hundred ninety-one".