53647753108991 has 2 divisors, whose sum is σ = 53647753108992. Its totient is φ = 53647753108990.

The previous prime is 53647753108979. The next prime is 53647753109101. The reversal of 53647753108991 is 19980135774635.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 53647753108991 - 2²² = 53647748914687 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53647753108091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26823876554495 + 26823876554496.

It is an arithmetic number, because the mean of its divisors is an integer number (26823876554496).

Almost surely, 2^{53647753108991} is an apocalyptic number.

53647753108991 is a deficient number, since it is larger than the sum of its proper divisors (1).

53647753108991 is an equidigital number, since it uses as much as digits as its factorization.

53647753108991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 171460800, while the sum is 68.

The spelling of 53647753108991 in words is "fifty-three trillion, six hundred forty-seven billion, seven hundred fifty-three million, one hundred eight thousand, nine hundred ninety-one".