55155203 has 4 divisors (see below), whose sum is σ = 55182888. Its totient is φ = 55127520.

The previous prime is 55155179. The next prime is 55155227. The reversal of 55155203 is 30255155.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (55155179) and next prime (55155227).

It is a cyclic number.

It is not a de Polignac number, because 55155203 - 2⁸ = 55154947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55155253) 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 3 ways as a sum of consecutive naturals, for example, 10601 + ... + 14922.

It is an arithmetic number, because the mean of its divisors is an integer number (13795722).

Almost surely, 2^55155203 is an apocalyptic number.

55155203 is a deficient number, since it is larger than the sum of its proper divisors (27685).

55155203 is a wasteful number, since it uses less digits than its factorization.

55155203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27684.

The product of its (nonzero) digits is 3750, while the sum is 26.

The square root of 55155203 is about 7426.6548997513. The cubic root of 55155203 is about 380.6526250550.

The spelling of 55155203 in words is "fifty-five million, one hundred fifty-five thousand, two hundred three".