2025858 has 16 divisors (see below), whose sum is σ = 4093056. Its totient is φ = 668400.

The previous prime is 2025833. The next prime is 2025869. The reversal of 2025858 is 8585202.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1066 + ... + 2277.

It is an arithmetic number, because the mean of its divisors is an integer number (255816).

2^2025858 is an apocalyptic number.

2025858 is an abundant number, since it is smaller than the sum of its proper divisors (2067198).

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

2025858 is a wasteful number, since it uses less digits than its factorization.

2025858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3449.

The product of its (nonzero) digits is 6400, while the sum is 30.

The square root of 2025858 is about 1423.3263856193. The cubic root of 2025858 is about 126.5327655494.

It can be divided in two parts, 20 and 25858, that added together give a triangular number (25878 = T₂₂₇).

The spelling of 2025858 in words is "two million, twenty-five thousand, eight hundred fifty-eight".