53563636897 has 2 divisors, whose sum is σ = 53563636898. Its totient is φ = 53563636896.

The previous prime is 53563636879. The next prime is 53563636901. The reversal of 53563636897 is 79863636535.

It is a happy number.

Together with previous prime (53563636879) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53455289616 + 108347281 = 231204^2 + 10409^2 .

It is a cyclic number.

It is not a de Polignac number, because 53563636897 - 2²³ = 53555248289 is a prime.

It is not a weakly prime, because it can be changed into another prime (53563636807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26781818448 + 26781818449.

It is an arithmetic number, because the mean of its divisors is an integer number (26781818449).

Almost surely, 2^53563636897 is an apocalyptic number.

It is an amenable number.

53563636897 is a deficient number, since it is larger than the sum of its proper divisors (1).

53563636897 is an equidigital number, since it uses as much as digits as its factorization.

53563636897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 73483200, while the sum is 61.

The spelling of 53563636897 in words is "fifty-three billion, five hundred sixty-three million, six hundred thirty-six thousand, eight hundred ninety-seven".