55813159 has 4 divisors (see below), whose sum is σ = 59096304. Its totient is φ = 52530016.

The previous prime is 55813129. The next prime is 55813169. The reversal of 55813159 is 95131855.

55813159 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 is a cyclic number.

It is not a de Polignac number, because 55813159 - 2¹⁵ = 55780391 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 (55813129) 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, 1641547 + ... + 1641580.

It is an arithmetic number, because the mean of its divisors is an integer number (14774076).

Almost surely, 2^55813159 is an apocalyptic number.

55813159 is a deficient number, since it is larger than the sum of its proper divisors (3283145).

55813159 is a wasteful number, since it uses less digits than its factorization.

55813159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3283144.

The product of its digits is 27000, while the sum is 37.

The square root of 55813159 is about 7470.8205038001. The cubic root of 55813159 is about 382.1602696365.

The spelling of 55813159 in words is "fifty-five million, eight hundred thirteen thousand, one hundred fifty-nine".