25718285 has 8 divisors (see below), whose sum is σ = 31322976. Its totient is φ = 20267280.

The previous prime is 25718281. The next prime is 25718291. The reversal of 25718285 is 58281752.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25718285 - 2² = 25718281 is a prime.

It is a super-2 number, since 2×25718285² = 1322860366682450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25718281) by changing a digit.

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, 38051 + ... + 38720.

It is an arithmetic number, because the mean of its divisors is an integer number (3915372).

Almost surely, 2^25718285 is an apocalyptic number.

It is an amenable number.

25718285 is a deficient number, since it is larger than the sum of its proper divisors (5604691).

25718285 is an equidigital number, since it uses as much as digits as its factorization.

25718285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76843.

The product of its digits is 44800, while the sum is 38.

The square root of 25718285 is about 5071.3198479291. The cubic root of 25718285 is about 295.1757451313.

The spelling of 25718285 in words is "twenty-five million, seven hundred eighteen thousand, two hundred eighty-five".