18255075 has 12 divisors (see below), whose sum is σ = 30181848. Its totient is φ = 9736000.

The previous prime is 18255071. The next prime is 18255089. The reversal of 18255075 is 57055281.

It is a happy number.

It is not a de Polignac number, because 18255075 - 2² = 18255071 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18255071) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 121626 + ... + 121775.

It is an arithmetic number, because the mean of its divisors is an integer number (2515154).

Almost surely, 2^18255075 is an apocalyptic number.

18255075 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

18255075 is a deficient number, since it is larger than the sum of its proper divisors (11926773).

18255075 is a wasteful number, since it uses less digits than its factorization.

18255075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243414 (or 243409 counting only the distinct ones).

The product of its (nonzero) digits is 14000, while the sum is 33.

The square root of 18255075 is about 4272.5958151924. The cubic root of 18255075 is about 263.3062738134.

The spelling of 18255075 in words is "eighteen million, two hundred fifty-five thousand, seventy-five".