55115254514543 has 16 divisors (see below), whose sum is σ = 56947682727936. Its totient is φ = 53286256319520.

The previous prime is 55115254514539. The next prime is 55115254514587. The reversal of 55115254514543 is 34541545251155.

It is a cyclic number.

It is not a de Polignac number, because 55115254514543 - 2² = 55115254514539 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55115254514491 and 55115254514500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55115224514543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 147131480 + ... + 147505602.

It is an arithmetic number, because the mean of its divisors is an integer number (3559230170496).

Almost surely, 2^{55115254514543} is an apocalyptic number.

55115254514543 is a deficient number, since it is larger than the sum of its proper divisors (1832428213393).

55115254514543 is a wasteful number, since it uses less digits than its factorization.

55115254514543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378694.

The product of its digits is 6000000, while the sum is 50.

Adding to 55115254514543 its reverse (34541545251155), we get a palindrome (89656799765698).

The spelling of 55115254514543 in words is "fifty-five trillion, one hundred fifteen billion, two hundred fifty-four million, five hundred fourteen thousand, five hundred forty-three".