5055551123 has 4 divisors (see below), whose sum is σ = 5777772720. Its totient is φ = 4333329528.

The previous prime is 5055551101. The next prime is 5055551131. The reversal of 5055551123 is 3211555505.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3211555505 = 5 ⋅642311101.

It is a cyclic number.

It is not a de Polignac number, because 5055551123 - 2²⁴ = 5038773907 is a prime.

It is a super-2 number, since 2×5055551123² = 51117194314533122258, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5055551123.

It is not an unprimeable number, because it can be changed into a prime (5055551023) 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, 361110788 + ... + 361110801.

It is an arithmetic number, because the mean of its divisors is an integer number (1444443180).

Almost surely, 2^5055551123 is an apocalyptic number.

5055551123 is a deficient number, since it is larger than the sum of its proper divisors (722221597).

5055551123 is an equidigital number, since it uses as much as digits as its factorization.

5055551123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 722221596.

The product of its (nonzero) digits is 18750, while the sum is 32.

The square root of 5055551123 is about 71102.3988554535. The cubic root of 5055551123 is about 1716.2853765969.

The spelling of 5055551123 in words is "five billion, fifty-five million, five hundred fifty-one thousand, one hundred twenty-three".