56534165543 has 4 divisors (see below), whose sum is σ = 59509647960. Its totient is φ = 53558683128.

The previous prime is 56534165491. The next prime is 56534165549. The reversal of 56534165543 is 34556143565.

56534165543 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34556143565 = 5 ⋅6911228713.

It is a cyclic number.

It is not a de Polignac number, because 56534165543 - 2¹⁸ = 56533903399 is a prime.

It is a super-2 number, since 2×56534165543² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56534165549) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1487741180 + ... + 1487741217.

It is an arithmetic number, because the mean of its divisors is an integer number (14877411990).

Almost surely, 2^56534165543 is an apocalyptic number.

56534165543 is a deficient number, since it is larger than the sum of its proper divisors (2975482417).

56534165543 is a wasteful number, since it uses less digits than its factorization.

56534165543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2975482416.

The product of its digits is 3240000, while the sum is 47.

The spelling of 56534165543 in words is "fifty-six billion, five hundred thirty-four million, one hundred sixty-five thousand, five hundred forty-three".