25280272 has 40 divisors (see below), whose sum is σ = 50856120. Its totient is φ = 12165120.

The previous prime is 25280201. The next prime is 25280273. The reversal of 25280272 is 27208252.

It can be written as a sum of positive squares in 4 ways, for example, as 1893376 + 23386896 = 1376^2 + 4836^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 25280272.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25280273) 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, 58168 + ... + 58600.

It is an arithmetic number, because the mean of its divisors is an integer number (1271403).

Almost surely, 2^25280272 is an apocalyptic number.

It is an amenable number.

25280272 is an abundant number, since it is smaller than the sum of its proper divisors (25575848).

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

25280272 is a wasteful number, since it uses less digits than its factorization.

25280272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 571 (or 565 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 25280272 is about 5027.9490848655. The cubic root of 25280272 is about 293.4904094449.

It can be divided in two parts, 25280 and 272, that added together give a palindrome (25552).

The spelling of 25280272 in words is "twenty-five million, two hundred eighty thousand, two hundred seventy-two".