1813258055 has 16 divisors (see below), whose sum is σ = 2509573440. Its totient is φ = 1231967232.

The previous prime is 1813258049. The next prime is 1813258081. The reversal of 1813258055 is 5508523181.

It is a cyclic number.

It is not a de Polignac number, because 1813258055 - 2⁴ = 1813258039 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 233834 + ... + 241463.

It is an arithmetic number, because the mean of its divisors is an integer number (156848340).

Almost surely, 2^1813258055 is an apocalyptic number.

1813258055 is a deficient number, since it is larger than the sum of its proper divisors (696315385).

1813258055 is a wasteful number, since it uses less digits than its factorization.

1813258055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475418.

The product of its (nonzero) digits is 48000, while the sum is 38.

The square root of 1813258055 is about 42582.3678885991. The cubic root of 1813258055 is about 1219.4196951260.

The spelling of 1813258055 in words is "one billion, eight hundred thirteen million, two hundred fifty-eight thousand, fifty-five".