55172204011 has 4 divisors (see below), whose sum is σ = 55224700024. Its totient is φ = 55119708000.

The previous prime is 55172203979. The next prime is 55172204023. The reversal of 55172204011 is 11040227155.

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 55172204011 - 2⁵ = 55172203979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55172204611) 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 3 ways as a sum of consecutive naturals, for example, 26246430 + ... + 26248531.

It is an arithmetic number, because the mean of its divisors is an integer number (13806175006).

Almost surely, 2^55172204011 is an apocalyptic number.

55172204011 is a deficient number, since it is larger than the sum of its proper divisors (52496013).

55172204011 is a wasteful number, since it uses less digits than its factorization.

55172204011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52496012.

The product of its (nonzero) digits is 2800, while the sum is 28.

The spelling of 55172204011 in words is "fifty-five billion, one hundred seventy-two million, two hundred four thousand, eleven".