53439202017 has 6 divisors (see below), whose sum is σ = 77189958482. Its totient is φ = 35626134672.

The previous prime is 53439201967. The next prime is 53439202021. The reversal of 53439202017 is 71020293435.

53439202017 is a `hidden beast` number, since 5 + 3 + 439 + 202 + 0 + 17 = 666.

It can be written as a sum of positive squares in only one way, i.e., 35543183841 + 17896018176 = 188529^2 + 133776^2 .

It is not a de Polignac number, because 53439202017 - 2⁶ = 53439201953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53439202067) 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, 2968844548 + ... + 2968844565.

Almost surely, 2^53439202017 is an apocalyptic number.

It is an amenable number.

53439202017 is a deficient number, since it is larger than the sum of its proper divisors (23750756465).

53439202017 is a wasteful number, since it uses less digits than its factorization.

53439202017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5937689119 (or 5937689116 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The spelling of 53439202017 in words is "fifty-three billion, four hundred thirty-nine million, two hundred two thousand, seventeen".