50001123 has 4 divisors (see below), whose sum is σ = 66668168. Its totient is φ = 33334080.

The previous prime is 50001121. The next prime is 50001137. The reversal of 50001123 is 32110005.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 50001123 - 2¹ = 50001121 is a prime.

It is a super-2 number, since 2×50001123² = 5000224602522258, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 50001099 and 50001108.

It is not an unprimeable number, because it can be changed into a prime (50001121) 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, 8333518 + ... + 8333523.

It is an arithmetic number, because the mean of its divisors is an integer number (16667042).

Almost surely, 2^50001123 is an apocalyptic number.

50001123 is a deficient number, since it is larger than the sum of its proper divisors (16667045).

50001123 is a wasteful number, since it uses less digits than its factorization.

50001123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16667044.

The product of its (nonzero) digits is 30, while the sum is 12.

The square root of 50001123 is about 7071.1472195111. The cubic root of 50001123 is about 368.4059079550.

Adding to 50001123 its reverse (32110005), we get a palindrome (82111128).

The spelling of 50001123 in words is "fifty million, one thousand, one hundred twenty-three".