25087120 has 20 divisors (see below), whose sum is σ = 58327740. Its totient is φ = 10034816.

The previous prime is 25087109. The next prime is 25087123. The reversal of 25087120 is 2178052.

It can be written as a sum of positive squares in 2 ways, for example, as 9437184 + 15649936 = 3072^2 + 3956^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (25087123) 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 3 ways as a sum of consecutive naturals, for example, 156715 + ... + 156874.

It is an arithmetic number, because the mean of its divisors is an integer number (2916387).

Almost surely, 2^25087120 is an apocalyptic number.

25087120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25087120 is an abundant number, since it is smaller than the sum of its proper divisors (33240620).

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

25087120 is a wasteful number, since it uses less digits than its factorization.

25087120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313602 (or 313596 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 25087120 is about 5008.7044233015. The cubic root of 25087120 is about 292.7410339418.

The spelling of 25087120 in words is "twenty-five million, eighty-seven thousand, one hundred twenty".