55291430543 has 16 divisors (see below), whose sum is σ = 57973156032. Its totient is φ = 52633152000.

The previous prime is 55291430507. The next prime is 55291430563. The reversal of 55291430543 is 34503419255.

It is a cyclic number.

It is not a de Polignac number, because 55291430543 - 2¹⁸ = 55291168399 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55291430543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55291430563) 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 15 ways as a sum of consecutive naturals, for example, 12974033 + ... + 12978293.

It is an arithmetic number, because the mean of its divisors is an integer number (3623322252).

Almost surely, 2^55291430543 is an apocalyptic number.

55291430543 is a deficient number, since it is larger than the sum of its proper divisors (2681725489).

55291430543 is a wasteful number, since it uses less digits than its factorization.

55291430543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6866.

The product of its (nonzero) digits is 324000, while the sum is 41.

Adding to 55291430543 its reverse (34503419255), we get a palindrome (89794849798).

The spelling of 55291430543 in words is "fifty-five billion, two hundred ninety-one million, four hundred thirty thousand, five hundred forty-three".