2053801806 has 32 divisors (see below), whose sum is σ = 4760529408. Its totient is φ = 578534880.

The previous prime is 2053801777. The next prime is 2053801811. The reversal of 2053801806 is 6081083502.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 341385 + ... + 347348.

It is an arithmetic number, because the mean of its divisors is an integer number (148766544).

Almost surely, 2^2053801806 is an apocalyptic number.

2053801806 is an abundant number, since it is smaller than the sum of its proper divisors (2706727602).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2053801806 is a wasteful number, since it uses less digits than its factorization.

2053801806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 688816.

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 2053801806 is about 45318.8901673463. The cubic root of 2053801806 is about 1271.1189027414.

The spelling of 2053801806 in words is "two billion, fifty-three million, eight hundred one thousand, eight hundred six".