55155113 has 8 divisors (see below), whose sum is σ = 59459400. Its totient is φ = 50859648.

The previous prime is 55155109. The next prime is 55155131. The reversal of 55155113 is 31155155.

55155113 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 9078169 + 46076944 = 3013^2 + 6788^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 55155113 - 2² = 55155109 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55155103) 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 7 ways as a sum of consecutive naturals, for example, 17093 + ... + 20061.

It is an arithmetic number, because the mean of its divisors is an integer number (7432425).

Almost surely, 2^55155113 is an apocalyptic number.

It is an amenable number.

55155113 is a deficient number, since it is larger than the sum of its proper divisors (4304287).

55155113 is a wasteful number, since it uses less digits than its factorization.

55155113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4411.

The product of its digits is 1875, while the sum is 26.

The square root of 55155113 is about 7426.6488404933. The cubic root of 55155113 is about 380.6524180105.

The spelling of 55155113 in words is "fifty-five million, one hundred fifty-five thousand, one hundred thirteen".