53660513953 has 2 divisors, whose sum is σ = 53660513954. Its totient is φ = 53660513952.

The previous prime is 53660513911. The next prime is 53660513993. The reversal of 53660513953 is 35931506635.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53244639504 + 415874449 = 230748^2 + 20393^2 .

It is a cyclic number.

It is not a de Polignac number, because 53660513953 - 2⁹ = 53660513441 is a prime.

It is not a weakly prime, because it can be changed into another prime (53660513993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26830256976 + 26830256977.

It is an arithmetic number, because the mean of its divisors is an integer number (26830256977).

Almost surely, 2^53660513953 is an apocalyptic number.

It is an amenable number.

53660513953 is a deficient number, since it is larger than the sum of its proper divisors (1).

53660513953 is an equidigital number, since it uses as much as digits as its factorization.

53660513953 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1093500, while the sum is 46.

The spelling of 53660513953 in words is "fifty-three billion, six hundred sixty million, five hundred thirteen thousand, nine hundred fifty-three".