53630855809 has 2 divisors, whose sum is σ = 53630855810. Its totient is φ = 53630855808.

The previous prime is 53630855749. The next prime is 53630855819. The reversal of 53630855809 is 90855803635.

It is a happy number.

53630855809 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30518343025 + 23112512784 = 174695^2 + 152028^2 .

It is a cyclic number.

It is not a de Polignac number, because 53630855809 - 2⁹ = 53630855297 is a prime.

It is not a weakly prime, because it can be changed into another prime (53630855819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26815427904 + 26815427905.

It is an arithmetic number, because the mean of its divisors is an integer number (26815427905).

Almost surely, 2^53630855809 is an apocalyptic number.

It is an amenable number.

53630855809 is a deficient number, since it is larger than the sum of its proper divisors (1).

53630855809 is an equidigital number, since it uses as much as digits as its factorization.

53630855809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888000, while the sum is 52.

The spelling of 53630855809 in words is "fifty-three billion, six hundred thirty million, eight hundred fifty-five thousand, eight hundred nine".