18061255 has 8 divisors (see below), whose sum is σ = 21770352. Its totient is φ = 14384448.

The previous prime is 18061249. The next prime is 18061271. The reversal of 18061255 is 55216081.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18061255 - 2⁵ = 18061223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6822 + ... + 9091.

It is an arithmetic number, because the mean of its divisors is an integer number (2721294).

Almost surely, 2^18061255 is an apocalyptic number.

18061255 is a deficient number, since it is larger than the sum of its proper divisors (3709097).

18061255 is a wasteful number, since it uses less digits than its factorization.

18061255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16145.

The product of its (nonzero) digits is 2400, while the sum is 28.

The square root of 18061255 is about 4249.8535268877. The cubic root of 18061255 is about 262.3710871174.

The spelling of 18061255 in words is "eighteen million, sixty-one thousand, two hundred fifty-five".