2105755653 has 4 divisors (see below), whose sum is σ = 2807674208. Its totient is φ = 1403837100.

The previous prime is 2105755633. The next prime is 2105755657. The reversal of 2105755653 is 3565575012.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2105755653 - 2¹³ = 2105747461 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 (2105755657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 350959273 + ... + 350959278.

It is an arithmetic number, because the mean of its divisors is an integer number (701918552).

Almost surely, 2^2105755653 is an apocalyptic number.

It is an amenable number.

2105755653 is a deficient number, since it is larger than the sum of its proper divisors (701918555).

2105755653 is an equidigital number, since it uses as much as digits as its factorization.

2105755653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 701918554.

The product of its (nonzero) digits is 157500, while the sum is 39.

The square root of 2105755653 is about 45888.5133012609. The cubic root of 2105755653 is about 1281.7480294044.

The spelling of 2105755653 in words is "two billion, one hundred five million, seven hundred fifty-five thousand, six hundred fifty-three".