55936109 has 4 divisors (see below), whose sum is σ = 56077404. Its totient is φ = 55794816.

The previous prime is 55936093. The next prime is 55936151. The reversal of 55936109 is 90163955.

55936109 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.

It can be written as a sum of positive squares in 2 ways, for example, as 36602500 + 19333609 = 6050^2 + 4397^2 .

It is a cyclic number.

It is not a de Polignac number, because 55936109 - 2⁴ = 55936093 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 (55936169) 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, 70052 + ... + 70845.

It is an arithmetic number, because the mean of its divisors is an integer number (14019351).

Almost surely, 2^55936109 is an apocalyptic number.

It is an amenable number.

55936109 is a deficient number, since it is larger than the sum of its proper divisors (141295).

55936109 is a wasteful number, since it uses less digits than its factorization.

55936109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141294.

The product of its (nonzero) digits is 36450, while the sum is 38.

The square root of 55936109 is about 7479.0446582435. The cubic root of 55936109 is about 382.4406822735.

The spelling of 55936109 in words is "fifty-five million, nine hundred thirty-six thousand, one hundred nine".