1801887055 has 8 divisors (see below), whose sum is σ = 2162531232. Its totient is φ = 1441331808.

The previous prime is 1801887011. The next prime is 1801887071. The reversal of 1801887055 is 5507881081.

It is a happy number.

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 1801887055 - 2⁷ = 1801886927 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36417 + ... + 70213.

It is an arithmetic number, because the mean of its divisors is an integer number (270316404).

Almost surely, 2^1801887055 is an apocalyptic number.

1801887055 is a deficient number, since it is larger than the sum of its proper divisors (360644177).

1801887055 is a wasteful number, since it uses less digits than its factorization.

1801887055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44465.

The product of its (nonzero) digits is 89600, while the sum is 43.

The square root of 1801887055 is about 42448.6402020135. The cubic root of 1801887055 is about 1216.8653413804.

The spelling of 1801887055 in words is "one billion, eight hundred one million, eight hundred eighty-seven thousand, fifty-five".