2051875 has 30 divisors (see below), whose sum is σ = 3027156. Its totient is φ = 1386000.

The previous prime is 2051851. The next prime is 2051887. The reversal of 2051875 is 5781502.

It is not a de Polignac number, because 2051875 - 2¹⁷ = 1920803 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 29 ways as a sum of consecutive naturals, for example, 30592 + ... + 30658.

2^2051875 is an apocalyptic number.

2051875 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2051875 is a deficient number, since it is larger than the sum of its proper divisors (975281).

2051875 is an frugal number, since it uses more digits than its factorization.

2051875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101 (or 79 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 28.

The square root of 2051875 is about 1432.4367350777. The cubic root of 2051875 is about 127.0721271734.

It can be divided in two parts, 2051 and 875, that added together give a triangular number (2926 = T₇₆).

The spelling of 2051875 in words is "two million, fifty-one thousand, eight hundred seventy-five".