25812243 has 16 divisors (see below), whose sum is σ = 39475200. Its totient is φ = 16652520.

The previous prime is 25812209. The next prime is 25812277. The reversal of 25812243 is 34221852.

It is an interprime number because it is at equal distance from previous prime (25812209) and next prime (25812277).

It is not a de Polignac number, because 25812243 - 2⁶ = 25812179 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (25812043) 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, 14583 + ... + 16256.

It is an arithmetic number, because the mean of its divisors is an integer number (2467200).

Almost surely, 2^25812243 is an apocalyptic number.

25812243 is a deficient number, since it is larger than the sum of its proper divisors (13662957).

25812243 is a wasteful number, since it uses less digits than its factorization.

25812243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30879 (or 30873 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 25812243 is about 5080.5750658759. The cubic root of 25812243 is about 295.5347687709.

The spelling of 25812243 in words is "twenty-five million, eight hundred twelve thousand, two hundred forty-three".