53171217135 has 24 divisors (see below), whose sum is σ = 97584823440. Its totient is φ = 26689865472.

The previous prime is 53171217103. The next prime is 53171217149.

53171217135 is a `hidden beast` number, since 531 + 7 + 1 + 21 + 71 + 35 = 666.

53171217135 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 53171217135 - 2⁵ = 53171217103 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 53171217135.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34751665 + ... + 34753194.

It is an arithmetic number, because the mean of its divisors is an integer number (4066034310).

Almost surely, 2^53171217135 is an apocalyptic number.

53171217135 is a deficient number, since it is larger than the sum of its proper divisors (44413606305).

53171217135 is a wasteful number, since it uses less digits than its factorization.

53171217135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69504887 (or 69504884 counting only the distinct ones).

The product of its digits is 22050, while the sum is 36.

The spelling of 53171217135 in words is "fifty-three billion, one hundred seventy-one million, two hundred seventeen thousand, one hundred thirty-five".