25859375 has 16 divisors (see below), whose sum is σ = 32421792. Its totient is φ = 20625000.

The previous prime is 25859371. The next prime is 25859381. The reversal of 25859375 is 57395852.

It is not a de Polignac number, because 25859375 - 2² = 25859371 is a prime.

It is a super-3 number, since 3×25859375³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

Its product of digits (378000) is a multiple of the sum of its prime divisors (336).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25859371) 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, 77960 + ... + 78290.

It is an arithmetic number, because the mean of its divisors is an integer number (2026362).

Almost surely, 2^25859375 is an apocalyptic number.

25859375 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

25859375 is a deficient number, since it is larger than the sum of its proper divisors (6562417).

25859375 is an frugal number, since it uses more digits than its factorization.

25859375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366 (or 336 counting only the distinct ones).

The product of its digits is 378000, while the sum is 44.

The square root of 25859375 is about 5085.2114017020. The cubic root of 25859375 is about 295.7145371507.

The spelling of 25859375 in words is "twenty-five million, eight hundred fifty-nine thousand, three hundred seventy-five".