25486985 has 8 divisors (see below), whose sum is σ = 30622536. Its totient is φ = 20364160.

The previous prime is 25486957. The next prime is 25486987. The reversal of 25486985 is 58968452.

It can be written as a sum of positive squares in 4 ways, for example, as 456976 + 25030009 = 676^2 + 5003^2 .

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

It is not a de Polignac number, because 25486985 - 2⁸ = 25486729 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (25486987) 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, 1997 + ... + 7413.

It is an arithmetic number, because the mean of its divisors is an integer number (3827817).

Almost surely, 2^25486985 is an apocalyptic number.

It is an amenable number.

25486985 is a deficient number, since it is larger than the sum of its proper divisors (5135551).

25486985 is an equidigital number, since it uses as much as digits as its factorization.

25486985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6363.

The product of its digits is 691200, while the sum is 47.

The square root of 25486985 is about 5048.4636276792. The cubic root of 25486985 is about 294.2881813415.

The spelling of 25486985 in words is "twenty-five million, four hundred eighty-six thousand, nine hundred eighty-five".