1815082055 has 4 divisors (see below), whose sum is σ = 2178098472. Its totient is φ = 1452065640.

The previous prime is 1815082033. The next prime is 1815082063. The reversal of 1815082055 is 5502805181.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1815082055 - 2⁶ = 1815081991 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 3 ways as a sum of consecutive naturals, for example, 181508201 + ... + 181508210.

It is an arithmetic number, because the mean of its divisors is an integer number (544524618).

Almost surely, 2^1815082055 is an apocalyptic number.

1815082055 is a deficient number, since it is larger than the sum of its proper divisors (363016417).

1815082055 is an equidigital number, since it uses as much as digits as its factorization.

1815082055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363016416.

The product of its (nonzero) digits is 16000, while the sum is 35.

The square root of 1815082055 is about 42603.7798205746. The cubic root of 1815082055 is about 1219.8284393264.

The spelling of 1815082055 in words is "one billion, eight hundred fifteen million, eighty-two thousand, fifty-five".