55112015543 has 24 divisors (see below), whose sum is σ = 64660369536. Its totient is φ = 46640318400.

The previous prime is 55112015537. The next prime is 55112015561. The reversal of 55112015543 is 34551021155.

It is not a de Polignac number, because 55112015543 - 2⁴ = 55112015527 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55112015503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43928 + ... + 334893.

It is an arithmetic number, because the mean of its divisors is an integer number (2694182064).

Almost surely, 2^55112015543 is an apocalyptic number.

55112015543 is a deficient number, since it is larger than the sum of its proper divisors (9548353993).

55112015543 is a wasteful number, since it uses less digits than its factorization.

55112015543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378903 (or 378884 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 32.

Adding to 55112015543 its reverse (34551021155), we get a palindrome (89663036698).

The spelling of 55112015543 in words is "fifty-five billion, one hundred twelve million, fifteen thousand, five hundred forty-three".