55033887 has 8 divisors (see below), whose sum is σ = 73455280. Its totient is φ = 36650880.

The previous prime is 55033877. The next prime is 55033889. The reversal of 55033887 is 78833055.

55033887 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 55033887 - 2¹⁴ = 55017503 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 (55033889) 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, 6064 + ... + 12117.

It is an arithmetic number, because the mean of its divisors is an integer number (9181910).

Almost surely, 2^55033887 is an apocalyptic number.

55033887 is a deficient number, since it is larger than the sum of its proper divisors (18421393).

55033887 is a wasteful number, since it uses less digits than its factorization.

55033887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19193.

The product of its (nonzero) digits is 100800, while the sum is 39.

The square root of 55033887 is about 7418.4827963675. The cubic root of 55033887 is about 380.3733334653.

The spelling of 55033887 in words is "fifty-five million, thirty-three thousand, eight hundred eighty-seven".