55189803 has 8 divisors (see below), whose sum is σ = 77915088. Its totient is φ = 34628864.

The previous prime is 55189789. The next prime is 55189807. The reversal of 55189803 is 30898155.

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

It is not a de Polignac number, because 55189803 - 2⁴ = 55189787 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55189807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 541026 + ... + 541127.

It is an arithmetic number, because the mean of its divisors is an integer number (9739386).

Almost surely, 2^55189803 is an apocalyptic number.

55189803 is a deficient number, since it is larger than the sum of its proper divisors (22725285).

55189803 is a wasteful number, since it uses less digits than its factorization.

55189803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1082173.

The product of its (nonzero) digits is 43200, while the sum is 39.

The square root of 55189803 is about 7428.9839816761. The cubic root of 55189803 is about 380.7322055057.

The spelling of 55189803 in words is "fifty-five million, one hundred eighty-nine thousand, eight hundred three".