18000050 has 24 divisors (see below), whose sum is σ = 33708036. Its totient is φ = 7151040.

The previous prime is 18000041. The next prime is 18000067. The reversal of 18000050 is 5000081.

It can be written as a sum of positive squares in 6 ways, for example, as 3108169 + 14891881 = 1763^2 + 3859^2 .

It is a junction number, because it is equal to n+sod(n) for n = 17999989 and 18000034.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6704 + ... + 8996.

Almost surely, 2^18000050 is an apocalyptic number.

18000050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18000050 is a deficient number, since it is larger than the sum of its proper divisors (15707986).

18000050 is a wasteful number, since it uses less digits than its factorization.

18000050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2462 (or 2457 counting only the distinct ones).

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

The square root of 18000050 is about 4242.6465796717. The cubic root of 18000050 is about 262.0743820819.

It can be divided in two parts, 180000 and 50, that multiplied together give a square (9000000 = 3000²).

The spelling of 18000050 in words is "eighteen million, fifty", and thus it is an aban number and an uban number.