25216272 has 50 divisors (see below), whose sum is σ = 72986958. Its totient is φ = 8404992.

The previous prime is 25216229. The next prime is 25216273. The reversal of 25216272 is 27261252.

It can be written as a sum of positive squares in only one way, i.e., 23970816 + 1245456 = 4896^2 + 1116^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (25216273) 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 9 ways as a sum of consecutive naturals, for example, 8433 + ... + 11024.

Almost surely, 2^25216272 is an apocalyptic number.

It is an amenable number.

25216272 is an abundant number, since it is smaller than the sum of its proper divisors (47770686).

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

25216272 is a wasteful number, since it uses less digits than its factorization.

25216272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19477 (or 19462 counting only the distinct ones).

The product of its digits is 3360, while the sum is 27.

The square root of 25216272 is about 5021.5806276510. The cubic root of 25216272 is about 293.2425315829.

The spelling of 25216272 in words is "twenty-five million, two hundred sixteen thousand, two hundred seventy-two".