2801655485 has 4 divisors (see below), whose sum is σ = 3361986588. Its totient is φ = 2241324384.

The previous prime is 2801655413. The next prime is 2801655487. The reversal of 2801655485 is 5845561082.

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

It can be written as a sum of positive squares in 2 ways, for example, as 567297124 + 2234358361 = 23818^2 + 47269^2 .

It is a cyclic number.

It is not a de Polignac number, because 2801655485 - 2²⁰ = 2800606909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2801655487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 280165544 + ... + 280165553.

It is an arithmetic number, because the mean of its divisors is an integer number (840496647).

Almost surely, 2^2801655485 is an apocalyptic number.

It is an amenable number.

2801655485 is a deficient number, since it is larger than the sum of its proper divisors (560331103).

2801655485 is an equidigital number, since it uses as much as digits as its factorization.

2801655485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 560331102.

The product of its (nonzero) digits is 384000, while the sum is 44.

The square root of 2801655485 is about 52930.6667726754. Note that the first 3 decimals coincide. The cubic root of 2801655485 is about 1409.7374701941.

The spelling of 2801655485 in words is "two billion, eight hundred one million, six hundred fifty-five thousand, four hundred eighty-five".