25727120 has 40 divisors (see below), whose sum is σ = 63337464. Its totient is φ = 9684992.

The previous prime is 25727113. The next prime is 25727123. The reversal of 25727120 is 2172752.

It can be written as a sum of positive squares in 4 ways, for example, as 9048064 + 16679056 = 3008^2 + 4084^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 25727120.

It is not an unprimeable number, because it can be changed into a prime (25727123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8099 + ... + 10818.

Almost surely, 2^25727120 is an apocalyptic number.

25727120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25727120 is an abundant number, since it is smaller than the sum of its proper divisors (37610344).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25727120 is a wasteful number, since it uses less digits than its factorization.

25727120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18947 (or 18941 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 26.

The square root of 25727120 is about 5072.1908481444. The cubic root of 25727120 is about 295.2095418267.

Adding to 25727120 its reverse (2172752), we get a palindrome (27899872).

The spelling of 25727120 in words is "twenty-five million, seven hundred twenty-seven thousand, one hundred twenty".