55215247657103 has 4 divisors (see below), whose sum is σ = 55218312975048. Its totient is φ = 55212182339160.

The previous prime is 55215247657093. The next prime is 55215247657139. The reversal of 55215247657103 is 30175674251255.

55215247657103 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55215247657103 - 2⁸ = 55215247656847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55215247657303) 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 3 ways as a sum of consecutive naturals, for example, 1532631953 + ... + 1532667978.

It is an arithmetic number, because the mean of its divisors is an integer number (13804578243762).

Almost surely, 2^{55215247657103} is an apocalyptic number.

55215247657103 is a deficient number, since it is larger than the sum of its proper divisors (3065317945).

55215247657103 is a wasteful number, since it uses less digits than its factorization.

55215247657103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3065317944.

The product of its (nonzero) digits is 8820000, while the sum is 53.

The spelling of 55215247657103 in words is "fifty-five trillion, two hundred fifteen billion, two hundred forty-seven million, six hundred fifty-seven thousand, one hundred three".