2051853 has 16 divisors (see below), whose sum is σ = 2889216. Its totient is φ = 1292720.

The previous prime is 2051851. The next prime is 2051887. The reversal of 2051853 is 3581502.

It is a cyclic number.

It is not a de Polignac number, because 2051853 - 2¹ = 2051851 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

2051853 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2051851) 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, 8926 + ... + 9152.

It is an arithmetic number, because the mean of its divisors is an integer number (180576).

2^2051853 is an apocalyptic number.

2051853 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

2051853 is a deficient number, since it is larger than the sum of its proper divisors (837363).

2051853 is a wasteful number, since it uses less digits than its factorization.

2051853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 2051853 is about 1432.4290558349. The cubic root of 2051853 is about 127.0716730202.

The spelling of 2051853 in words is "two million, fifty-one thousand, eight hundred fifty-three".