2053863 has 16 divisors (see below), whose sum is σ = 3477760. Its totient is φ = 1173528.

The previous prime is 2053859. The next prime is 2053871. The reversal of 2053863 is 3683502.

It is not a de Polignac number, because 2053863 - 2² = 2053859 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a d-powerful number, because it can be written as 2¹³ + 0 + 5⁹ + 3⁸ + 8⁵ + 6⁶ + 3⁸ .

It is a Duffinian number.

2053863 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2053873) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5245 + ... + 5622.

It is an arithmetic number, because the mean of its divisors is an integer number (217360).

2^2053863 is an apocalyptic number.

2053863 is a deficient number, since it is larger than the sum of its proper divisors (1423897).

2053863 is a wasteful number, since it uses less digits than its factorization.

2053863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10883 (or 10877 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 2053863 is about 1433.1304895228. The cubic root of 2053863 is about 127.1131527146.

It can be divided in two parts, 2053 and 863, that added together give a square (2916 = 54²).

The spelling of 2053863 in words is "two million, fifty-three thousand, eight hundred sixty-three".