55387033 has 8 divisors (see below), whose sum is σ = 62787200. Its totient is φ = 48435408.

The previous prime is 55387027. The next prime is 55387043. The reversal of 55387033 is 33078355.

It is a happy number.

55387033 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 55387033 - 2¹⁷ = 55255961 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 55387033.

It is not an unprimeable number, because it can be changed into a prime (55387043) 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, 111873 + ... + 112366.

It is an arithmetic number, because the mean of its divisors is an integer number (7848400).

Almost surely, 2^55387033 is an apocalyptic number.

It is an amenable number.

55387033 is a deficient number, since it is larger than the sum of its proper divisors (7400167).

55387033 is a wasteful number, since it uses less digits than its factorization.

55387033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224271.

The product of its (nonzero) digits is 37800, while the sum is 34.

The square root of 55387033 is about 7442.2465022330. The cubic root of 55387033 is about 381.1852030700.

The spelling of 55387033 in words is "fifty-five million, three hundred eighty-seven thousand, thirty-three".