53635638653 has 2 divisors, whose sum is σ = 53635638654. Its totient is φ = 53635638652.

The previous prime is 53635638577. The next prime is 53635638659. The reversal of 53635638653 is 35683653635.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30573571609 + 23062067044 = 174853^2 + 151862^2 .

It is a cyclic number.

It is not a de Polignac number, because 53635638653 - 2²⁴ = 53618861437 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 53635638595 and 53635638604.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53635638659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26817819326 + 26817819327.

It is an arithmetic number, because the mean of its divisors is an integer number (26817819327).

Almost surely, 2^53635638653 is an apocalyptic number.

It is an amenable number.

53635638653 is a deficient number, since it is larger than the sum of its proper divisors (1).

53635638653 is an equidigital number, since it uses as much as digits as its factorization.

53635638653 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17496000, while the sum is 53.

The spelling of 53635638653 in words is "fifty-three billion, six hundred thirty-five million, six hundred thirty-eight thousand, six hundred fifty-three".