53517720416657 has 16 divisors (see below), whose sum is σ = 61491903206400. Its totient is φ = 45626011557840.

The previous prime is 53517720416623. The next prime is 53517720416687. The reversal of 53517720416657 is 75661402771535.

It is not a de Polignac number, because 53517720416657 - 2²² = 53517716222353 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53517720416596 and 53517720416605.

It is not an unprimeable number, because it can be changed into a prime (53517720416687) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9141557 + ... + 13805922.

It is an arithmetic number, because the mean of its divisors is an integer number (3843243950400).

Almost surely, 2^{53517720416657} is an apocalyptic number.

It is an amenable number.

53517720416657 is a deficient number, since it is larger than the sum of its proper divisors (7974182789743).

53517720416657 is a wasteful number, since it uses less digits than its factorization.

53517720416657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22949276.

The product of its (nonzero) digits is 37044000, while the sum is 59.

The spelling of 53517720416657 in words is "fifty-three trillion, five hundred seventeen billion, seven hundred twenty million, four hundred sixteen thousand, six hundred fifty-seven".