635240415651053 has 2 divisors, whose sum is σ = 635240415651054. Its totient is φ = 635240415651052.

The previous prime is 635240415650993. The next prime is 635240415651067. The reversal of 635240415651053 is 350156514042536.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 560702523588964 + 74537892062089 = 23679158^2 + 8633533^2 .

It is a cyclic number.

It is not a de Polignac number, because 635240415651053 - 2¹² = 635240415646957 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 635240415650992 and 635240415651010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (635240415851053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 317620207825526 + 317620207825527.

It is an arithmetic number, because the mean of its divisors is an integer number (317620207825527).

Almost surely, 2^{635240415651053} is an apocalyptic number.

It is an amenable number.

635240415651053 is a deficient number, since it is larger than the sum of its proper divisors (1).

635240415651053 is an equidigital number, since it uses as much as digits as its factorization.

635240415651053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480000, while the sum is 50.

Adding to 635240415651053 its reverse (350156514042536), we get a palindrome (985396929693589).

The spelling of 635240415651053 in words is "six hundred thirty-five trillion, two hundred forty billion, four hundred fifteen million, six hundred fifty-one thousand, fifty-three".