55133103 has 8 divisors (see below), whose sum is σ = 73588528. Its totient is φ = 36716544.

The previous prime is 55133101. The next prime is 55133107. The reversal of 55133103 is 30133155.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55133103 - 2¹ = 55133101 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 55133103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55133101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6226 + ... + 12207.

It is an arithmetic number, because the mean of its divisors is an integer number (9198566).

Almost surely, 2^55133103 is an apocalyptic number.

55133103 is a deficient number, since it is larger than the sum of its proper divisors (18455425).

55133103 is a wasteful number, since it uses less digits than its factorization.

55133103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19433.

The product of its (nonzero) digits is 675, while the sum is 21.

The square root of 55133103 is about 7425.1668668118. The cubic root of 55133103 is about 380.6017773478.

Adding to 55133103 its reverse (30133155), we get a palindrome (85266258).

The spelling of 55133103 in words is "fifty-five million, one hundred thirty-three thousand, one hundred three".