5000055123 has 64 divisors (see below), whose sum is σ = 8191180800. Its totient is φ = 2651425920.

The previous prime is 5000055107. The next prime is 5000055127. The reversal of 5000055123 is 3215500005.

It is not a de Polignac number, because 5000055123 - 2⁴ = 5000055107 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 5000055123.

It is not an unprimeable number, because it can be changed into a prime (5000055127) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2250153 + ... + 2252373.

It is an arithmetic number, because the mean of its divisors is an integer number (127987200).

Almost surely, 2^5000055123 is an apocalyptic number.

5000055123 is a deficient number, since it is larger than the sum of its proper divisors (3191125677).

5000055123 is a wasteful number, since it uses less digits than its factorization.

5000055123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2392.

The product of its (nonzero) digits is 750, while the sum is 21.

The square root of 5000055123 is about 70711.0678960515. The cubic root of 5000055123 is about 1709.9822305872.

Adding to 5000055123 its reverse (3215500005), we get a palindrome (8215555128).

The spelling of 5000055123 in words is "five billion, fifty-five thousand, one hundred twenty-three".