18056025 has 36 divisors (see below), whose sum is σ = 34833708. Its totient is φ = 8887680.

The previous prime is 18056021. The next prime is 18056041. The reversal of 18056025 is 52065081.

18056025 is a `hidden beast` number, since 1 + 80 + 560 + 25 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 7225344 + 10830681 = 2688^2 + 3291^2 .

It is not a de Polignac number, because 18056025 - 2² = 18056021 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18056025.

It is not an unprimeable number, because it can be changed into a prime (18056021) 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 35 ways as a sum of consecutive naturals, for example, 162 + ... + 6011.

It is an arithmetic number, because the mean of its divisors is an integer number (967603).

Almost surely, 2^18056025 is an apocalyptic number.

18056025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18056025 is a deficient number, since it is larger than the sum of its proper divisors (16777683).

18056025 is a wasteful number, since it uses less digits than its factorization.

18056025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6202 (or 6194 counting only the distinct ones).

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

The square root of 18056025 is about 4249.2381670130. The cubic root of 18056025 is about 262.3457597291.

The spelling of 18056025 in words is "eighteen million, fifty-six thousand, twenty-five".