55133755 has 4 divisors (see below), whose sum is σ = 66160512. Its totient is φ = 44107000.

The previous prime is 55133753. The next prime is 55133759. The reversal of 55133755 is 55733155.

55133755 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 an emirpimes, since its reverse is a distinct semiprime: 55733155 = 5 ⋅11146631.

It is not a de Polignac number, because 55133755 - 2¹ = 55133753 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55133755.

It is not an unprimeable number, because it can be changed into a prime (55133753) 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, 5513371 + ... + 5513380.

It is an arithmetic number, because the mean of its divisors is an integer number (16540128).

Almost surely, 2^55133755 is an apocalyptic number.

55133755 is a deficient number, since it is larger than the sum of its proper divisors (11026757).

55133755 is a wasteful number, since it uses less digits than its factorization.

55133755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11026756.

The product of its digits is 39375, while the sum is 34.

The square root of 55133755 is about 7425.2107714192. The cubic root of 55133755 is about 380.6032776647.

The spelling of 55133755 in words is "fifty-five million, one hundred thirty-three thousand, seven hundred fifty-five".