2105606253 has 16 divisors (see below), whose sum is σ = 2852417216. Its totient is φ = 1381311360.

The previous prime is 2105606227. The next prime is 2105606263. The reversal of 2105606253 is 3526065012.

It is not a de Polignac number, because 2105606253 - 2⁵ = 2105606221 is a prime.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2105606253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2105606263) 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 15 ways as a sum of consecutive naturals, for example, 202563 + ... + 212703.

It is an arithmetic number, because the mean of its divisors is an integer number (178276076).

Almost surely, 2^2105606253 is an apocalyptic number.

It is an amenable number.

2105606253 is a deficient number, since it is larger than the sum of its proper divisors (746810963).

2105606253 is a wasteful number, since it uses less digits than its factorization.

2105606253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11244.

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 2105606253 is about 45886.8854140265. The cubic root of 2105606253 is about 1281.7177160291.

The spelling of 2105606253 in words is "two billion, one hundred five million, six hundred six thousand, two hundred fifty-three".