55102172203 has 8 divisors (see below), whose sum is σ = 59349122000. Its totient is φ = 50856411168.

The previous prime is 55102172201. The next prime is 55102172287. The reversal of 55102172203 is 30227120155.

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

It is a cyclic number.

It is not a de Polignac number, because 55102172203 - 2¹ = 55102172201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55102172201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 199728 + ... + 387421.

It is an arithmetic number, because the mean of its divisors is an integer number (7418640250).

Almost surely, 2^55102172203 is an apocalyptic number.

55102172203 is a deficient number, since it is larger than the sum of its proper divisors (4246949797).

55102172203 is a wasteful number, since it uses less digits than its factorization.

55102172203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 594381.

The product of its (nonzero) digits is 4200, while the sum is 28.

Adding to 55102172203 its reverse (30227120155), we get a palindrome (85329292358).

The spelling of 55102172203 in words is "fifty-five billion, one hundred two million, one hundred seventy-two thousand, two hundred three".