2053813861 has 24 divisors (see below), whose sum is σ = 2319847200. Its totient is φ = 1803081600.

The previous prime is 2053813837. The next prime is 2053813897. The reversal of 2053813861 is 1683183502.

It is not a de Polignac number, because 2053813861 - 2⁷ = 2053813733 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2053813861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2053813831) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2015010 + ... + 2016028.

It is an arithmetic number, because the mean of its divisors is an integer number (96660300).

Almost surely, 2^2053813861 is an apocalyptic number.

It is an amenable number.

2053813861 is a deficient number, since it is larger than the sum of its proper divisors (266033339).

2053813861 is a wasteful number, since it uses less digits than its factorization.

2053813861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1221 (or 1180 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 2053813861 is about 45319.0231690843. The cubic root of 2053813861 is about 1271.1213897241.

The spelling of 2053813861 in words is "two billion, fifty-three million, eight hundred thirteen thousand, eight hundred sixty-one".