53121676617 has 6 divisors (see below), whose sum is σ = 76731310682. Its totient is φ = 35414451072.

The previous prime is 53121676603. The next prime is 53121676693. The reversal of 53121676617 is 71667612135.

53121676617 is a `hidden beast` number, since 5 + 3 + 1 + 21 + 6 + 7 + 6 + 617 = 666.

53121676617 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 49486671936 + 3635004681 = 222456^2 + 60291^2 .

It is not a de Polignac number, because 53121676617 - 2¹¹ = 53121674569 is a prime.

It is a super-2 number, since 2×53121676617² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53121676717) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2951204248 + ... + 2951204265.

Almost surely, 2^53121676617 is an apocalyptic number.

It is an amenable number.

53121676617 is a deficient number, since it is larger than the sum of its proper divisors (23609634065).

53121676617 is a wasteful number, since it uses less digits than its factorization.

53121676617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5902408519 (or 5902408516 counting only the distinct ones).

The product of its digits is 317520, while the sum is 45.

The spelling of 53121676617 in words is "fifty-three billion, one hundred twenty-one million, six hundred seventy-six thousand, six hundred seventeen".