55103156617 has 4 divisors (see below), whose sum is σ = 55468078336. Its totient is φ = 54738234900.

The previous prime is 55103156561. The next prime is 55103156629. The reversal of 55103156617 is 71665130155.

It is a happy number.

55103156617 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55103156617 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55103156617.

It is not an unprimeable number, because it can be changed into a prime (55103156687) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 182460633 + ... + 182460934.

It is an arithmetic number, because the mean of its divisors is an integer number (13867019584).

Almost surely, 2^55103156617 is an apocalyptic number.

It is an amenable number.

55103156617 is a deficient number, since it is larger than the sum of its proper divisors (364921719).

55103156617 is a wasteful number, since it uses less digits than its factorization.

55103156617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364921718.

The product of its (nonzero) digits is 94500, while the sum is 40.

The spelling of 55103156617 in words is "fifty-five billion, one hundred three million, one hundred fifty-six thousand, six hundred seventeen".