18050565 has 16 divisors (see below), whose sum is σ = 31102848. Its totient is φ = 8886336.

The previous prime is 18050563. The next prime is 18050567. The reversal of 18050565 is 56505081.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (18050563) and next prime (18050567).

It is not a de Polignac number, because 18050565 - 2¹ = 18050563 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18050563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46089 + ... + 46478.

It is an arithmetic number, because the mean of its divisors is an integer number (1943928).

Almost surely, 2^18050565 is an apocalyptic number.

18050565 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18050565 is a deficient number, since it is larger than the sum of its proper divisors (13052283).

18050565 is a wasteful number, since it uses less digits than its factorization.

18050565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92588.

The product of its (nonzero) digits is 6000, while the sum is 30.

The square root of 18050565 is about 4248.5956503296. The cubic root of 18050565 is about 262.3193132981.

The spelling of 18050565 in words is "eighteen million, fifty thousand, five hundred sixty-five".