53111117 has 4 divisors (see below), whose sum is σ = 55420320. Its totient is φ = 50801916.

The previous prime is 53111027. The next prime is 53111143. The reversal of 53111117 is 71111135.

53111117 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, and also an emirpimes, since its reverse is a distinct semiprime: 71111135 = 5 ⋅14222227.

It is a cyclic number.

It is not a de Polignac number, because 53111117 - 2¹⁴ = 53094733 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 (53111717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1154567 + ... + 1154612.

It is an arithmetic number, because the mean of its divisors is an integer number (13855080).

Almost surely, 2^53111117 is an apocalyptic number.

It is an amenable number.

53111117 is a deficient number, since it is larger than the sum of its proper divisors (2309203).

53111117 is a wasteful number, since it uses less digits than its factorization.

53111117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2309202.

The product of its digits is 105, while the sum is 20.

The square root of 53111117 is about 7287.7374403857. The cubic root of 53111117 is about 375.8908998578.

The spelling of 53111117 in words is "fifty-three million, one hundred eleven thousand, one hundred seventeen".