55105034243 has 16 divisors (see below), whose sum is σ = 63435712704. Its totient is φ = 46889902080.

The previous prime is 55105034233. The next prime is 55105034261. The reversal of 55105034243 is 34243050155.

It is a happy number.

It is not a de Polignac number, because 55105034243 - 2⁸ = 55105033987 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55105034233) 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, 693371 + ... + 768747.

It is an arithmetic number, because the mean of its divisors is an integer number (3964732044).

Almost surely, 2^55105034243 is an apocalyptic number.

55105034243 is a deficient number, since it is larger than the sum of its proper divisors (8330678461).

55105034243 is a wasteful number, since it uses less digits than its factorization.

55105034243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76142.

The product of its (nonzero) digits is 36000, while the sum is 32.

Adding to 55105034243 its reverse (34243050155), we get a palindrome (89348084398).

The spelling of 55105034243 in words is "fifty-five billion, one hundred five million, thirty-four thousand, two hundred forty-three".