55103135502 has 16 divisors (see below), whose sum is σ = 110518474320. Its totient is φ = 18315677952.

The previous prime is 55103135497. The next prime is 55103135519. The reversal of 55103135502 is 20553130155.

It is a self number, because there is not a number n which added to its sum of digits gives 55103135502.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 13006177 + ... + 13010412.

It is an arithmetic number, because the mean of its divisors is an integer number (6907404645).

Almost surely, 2^55103135502 is an apocalyptic number.

55103135502 is an abundant number, since it is smaller than the sum of its proper divisors (55415338818).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55103135502 is a wasteful number, since it uses less digits than its factorization.

55103135502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26016947.

The product of its (nonzero) digits is 11250, while the sum is 30.

Adding to 55103135502 its reverse (20553130155), we get a palindrome (75656265657).

The spelling of 55103135502 in words is "fifty-five billion, one hundred three million, one hundred thirty-five thousand, five hundred two".