55000103 has 4 divisors (see below), whose sum is σ = 55029240. Its totient is φ = 54970968.

The previous prime is 55000091. The next prime is 55000111. The reversal of 55000103 is 30100055.

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 55000103 - 2¹⁰ = 54999079 is a prime.

It is a super-2 number, since 2×55000103² = 6050022660021218, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55000163) 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, 11525 + ... + 15582.

It is an arithmetic number, because the mean of its divisors is an integer number (13757310).

Almost surely, 2^55000103 is an apocalyptic number.

55000103 is a deficient number, since it is larger than the sum of its proper divisors (29137).

55000103 is a wasteful number, since it uses less digits than its factorization.

55000103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29136.

The product of its (nonzero) digits is 75, while the sum is 14.

The square root of 55000103 is about 7416.2054313510. The cubic root of 55000103 is about 380.2954834724.

Adding to 55000103 its reverse (30100055), we get a palindrome (85100158).

The spelling of 55000103 in words is "fifty-five million, one hundred three", and thus it is an aban number.