55011103 has 16 divisors (see below), whose sum is σ = 64548864. Its totient is φ = 45904320.

The previous prime is 55011091. The next prime is 55011109. The reversal of 55011103 is 30111055.

It is not a de Polignac number, because 55011103 - 2⁵ = 55011071 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 (55011109) 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, 88851 + ... + 89467.

It is an arithmetic number, because the mean of its divisors is an integer number (4034304).

Almost surely, 2^55011103 is an apocalyptic number.

55011103 is a deficient number, since it is larger than the sum of its proper divisors (9537761).

55011103 is a wasteful number, since it uses less digits than its factorization.

55011103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 942.

The product of its (nonzero) digits is 75, while the sum is 16.

The square root of 55011103 is about 7416.9470134281. The cubic root of 55011103 is about 380.3208347672.

Adding to 55011103 its reverse (30111055), we get a palindrome (85122158).

The spelling of 55011103 in words is "fifty-five million, eleven thousand, one hundred three".