55617203 has 4 divisors (see below), whose sum is σ = 55645800. Its totient is φ = 55588608.

The previous prime is 55617187. The next prime is 55617227. The reversal of 55617203 is 30271655.

55617203 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.

It is a cyclic number.

It is not a de Polignac number, because 55617203 - 2⁴ = 55617187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55617293) 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, 11150 + ... + 15347.

It is an arithmetic number, because the mean of its divisors is an integer number (13911450).

Almost surely, 2^55617203 is an apocalyptic number.

55617203 is a deficient number, since it is larger than the sum of its proper divisors (28597).

55617203 is a wasteful number, since it uses less digits than its factorization.

55617203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28596.

The product of its (nonzero) digits is 6300, while the sum is 29.

The square root of 55617203 is about 7457.6942147020. The cubic root of 55617203 is about 381.7124994274.

Adding to 55617203 its reverse (30271655), we get a palindrome (85888858).

The spelling of 55617203 in words is "fifty-five million, six hundred seventeen thousand, two hundred three".