50320018 has 32 divisors (see below), whose sum is σ = 91751040. Its totient is φ = 20217600.

The previous prime is 50320001. The next prime is 50320027. The reversal of 50320018 is 81002305.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a junction number, because it is equal to n+sod(n) for n = 50319977 and 50320004.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25930 + ... + 27802.

It is an arithmetic number, because the mean of its divisors is an integer number (2867220).

Almost surely, 2^50320018 is an apocalyptic number.

50320018 is a deficient number, since it is larger than the sum of its proper divisors (41431022).

50320018 is a wasteful number, since it uses less digits than its factorization.

50320018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2002.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 50320018 is about 7093.6604091259. The cubic root of 50320018 is about 369.1874498969.

The spelling of 50320018 in words is "fifty million, three hundred twenty thousand, eighteen".