25481872 has 20 divisors (see below), whose sum is σ = 53169340. Its totient is φ = 11760768.

The previous prime is 25481821. The next prime is 25481873. The reversal of 25481872 is 27818452.

It can be written as a sum of positive squares in 2 ways, for example, as 17438976 + 8042896 = 4176^2 + 2836^2 .

It is not an unprimeable number, because it can be changed into a prime (25481873) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61047 + ... + 61462.

It is an arithmetic number, because the mean of its divisors is an integer number (2658467).

Almost surely, 2^25481872 is an apocalyptic number.

It is an amenable number.

25481872 is an abundant number, since it is smaller than the sum of its proper divisors (27687468).

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

25481872 is a wasteful number, since it uses less digits than its factorization.

25481872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122530 (or 122524 counting only the distinct ones).

The product of its digits is 35840, while the sum is 37.

The square root of 25481872 is about 5047.9572105952. The cubic root of 25481872 is about 294.2685007594.

It can be divided in two parts, 2548 and 1872, that multiplied together give a square (4769856 = 2184²).

The spelling of 25481872 in words is "twenty-five million, four hundred eighty-one thousand, eight hundred seventy-two".