55113115133 has 4 divisors (see below), whose sum is σ = 58355063100. Its totient is φ = 51871167168.

The previous prime is 55113115097. The next prime is 55113115153. The reversal of 55113115133 is 33151131155.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 33151131155 = 5 ⋅6630226231.

It can be written as a sum of positive squares in 2 ways, for example, as 50092258969 + 5020856164 = 223813^2 + 70858^2 .

It is a cyclic number.

It is not a de Polignac number, because 55113115133 - 2³² = 50818147837 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55113115096 and 55113115105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55113115153) 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, 1620973958 + ... + 1620973991.

It is an arithmetic number, because the mean of its divisors is an integer number (14588765775).

Almost surely, 2^55113115133 is an apocalyptic number.

It is an amenable number.

55113115133 is a deficient number, since it is larger than the sum of its proper divisors (3241947967).

55113115133 is a wasteful number, since it uses less digits than its factorization.

55113115133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3241947966.

The product of its digits is 3375, while the sum is 29.

Adding to 55113115133 its reverse (33151131155), we get a palindrome (88264246288).

The spelling of 55113115133 in words is "fifty-five billion, one hundred thirteen million, one hundred fifteen thousand, one hundred thirty-three".