635256055013 has 2 divisors, whose sum is σ = 635256055014. Its totient is φ = 635256055012.

The previous prime is 635256055001. The next prime is 635256055067. The reversal of 635256055013 is 310550652536.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 383350437409 + 251905617604 = 619153^2 + 501902^2 .

It is a cyclic number.

It is not a de Polignac number, because 635256055013 - 2¹⁸ = 635255792869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (635256025013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 317628027506 + 317628027507.

It is an arithmetic number, because the mean of its divisors is an integer number (317628027507).

Almost surely, 2^635256055013 is an apocalyptic number.

It is an amenable number.

635256055013 is a deficient number, since it is larger than the sum of its proper divisors (1).

635256055013 is an equidigital number, since it uses as much as digits as its factorization.

635256055013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 405000, while the sum is 41.

The spelling of 635256055013 in words is "six hundred thirty-five billion, two hundred fifty-six million, fifty-five thousand, thirteen".