55113151 has 4 divisors (see below), whose sum is σ = 55600992. Its totient is φ = 54625312.

The previous prime is 55113119. The next prime is 55113181. The reversal of 55113151 is 15131155.

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 55113151 - 2⁵ = 55113119 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 (55113181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 243751 + ... + 243976.

It is an arithmetic number, because the mean of its divisors is an integer number (13900248).

Almost surely, 2^55113151 is an apocalyptic number.

55113151 is a deficient number, since it is larger than the sum of its proper divisors (487841).

55113151 is a wasteful number, since it uses less digits than its factorization.

55113151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487840.

The product of its digits is 375, while the sum is 22.

The square root of 55113151 is about 7423.8232064079. The cubic root of 55113151 is about 380.5558600890. Note that the first 3 decimals are identical.

The spelling of 55113151 in words is "fifty-five million, one hundred thirteen thousand, one hundred fifty-one".