5000018 has 4 divisors (see below), whose sum is σ = 7500030. Its totient is φ = 2500008.

The previous prime is 5000011. The next prime is 5000077. The reversal of 5000018 is 8100005.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8100005 = 5 ⋅1620001.

It can be written as a sum of positive squares in only one way, i.e., 4380649 + 619369 = 2093^2 + 787^2 .

It is a junction number, because it is equal to n+sod(n) for n = 4999966 and 5000011.

It is not an unprimeable number, because it can be changed into a prime (5000011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1250003 + ... + 1250006.

Almost surely, 2^5000018 is an apocalyptic number.

5000018 is a deficient number, since it is larger than the sum of its proper divisors (2500012).

5000018 is a wasteful number, since it uses less digits than its factorization.

5000018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2500011.

The product of its (nonzero) digits is 40, while the sum is 14.

The square root of 5000018 is about 2236.0720024185. The cubic root of 5000018 is about 170.9977998645.

The spelling of 5000018 in words is "five million, eighteen", and thus it is an aban number and an uban number.