25724085 has 8 divisors (see below), whose sum is σ = 41158560. Its totient is φ = 13719504.

The previous prime is 25724057. The next prime is 25724089. The reversal of 25724085 is 58042752.

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

It is not a de Polignac number, because 25724085 - 2⁶ = 25724021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25724089) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 857455 + ... + 857484.

It is an arithmetic number, because the mean of its divisors is an integer number (5144820).

Almost surely, 2^25724085 is an apocalyptic number.

It is an amenable number.

25724085 is a deficient number, since it is larger than the sum of its proper divisors (15434475).

25724085 is a wasteful number, since it uses less digits than its factorization.

25724085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1714947.

The product of its (nonzero) digits is 22400, while the sum is 33.

The square root of 25724085 is about 5071.8916589375. The cubic root of 25724085 is about 295.1979328554.

It can be divided in two parts, 257 and 24085, that added together give a palindrome (24342).

The spelling of 25724085 in words is "twenty-five million, seven hundred twenty-four thousand, eighty-five".