53430443217 has 6 divisors (see below), whose sum is σ = 77177306882. Its totient is φ = 35620295472.

The previous prime is 53430443119. The next prime is 53430443243. The reversal of 53430443217 is 71234403435.

53430443217 is a `hidden beast` number, since 5 + 3 + 430 + 4 + 4 + 3 + 217 = 666.

It can be written as a sum of positive squares in only one way, i.e., 49181489361 + 4248953856 = 221769^2 + 65184^2 .

It is not a de Polignac number, because 53430443217 - 2³⁰ = 52356701393 is a prime.

It is a super-2 number, since 2×53430443217² (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 (53430443257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2968357948 + ... + 2968357965.

Almost surely, 2^53430443217 is an apocalyptic number.

It is an amenable number.

53430443217 is a deficient number, since it is larger than the sum of its proper divisors (23746863665).

53430443217 is a wasteful number, since it uses less digits than its factorization.

53430443217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5936715919 (or 5936715916 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 36.

The spelling of 53430443217 in words is "fifty-three billion, four hundred thirty million, four hundred forty-three thousand, two hundred seventeen".