18205056 has 48 divisors (see below), whose sum is σ = 52390260. Its totient is φ = 6067968.

The previous prime is 18205049. The next prime is 18205063. The reversal of 18205056 is 65050281.

It is an interprime number because it is at equal distance from previous prime (18205049) and next prime (18205063).

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6750 + ... + 9053.

Almost surely, 2^18205056 is an apocalyptic number.

18205056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

18205056 is an abundant number, since it is smaller than the sum of its proper divisors (34185204).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18205056 is a wasteful number, since it uses less digits than its factorization.

18205056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15823 (or 15808 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 18205056 is about 4266.7383327315. The cubic root of 18205056 is about 263.0655669822.

It can be divided in two parts, 182050 and 56, that added together give a triangular number (182106 = T₆₀₃).

The spelling of 18205056 in words is "eighteen million, two hundred five thousand, fifty-six".