25228712 has 8 divisors (see below), whose sum is σ = 47303850. Its totient is φ = 12614352.

The previous prime is 25228711. The next prime is 25228733. The reversal of 25228712 is 21782252.

It can be written as a sum of positive squares in only one way, i.e., 17422276 + 7806436 = 4174^2 + 2794^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (25228711) 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 as a sum of consecutive naturals, namely, 1576787 + ... + 1576802.

Almost surely, 2^25228712 is an apocalyptic number.

It is an amenable number.

25228712 is a deficient number, since it is larger than the sum of its proper divisors (22075138).

25228712 is a wasteful number, since it uses less digits than its factorization.

25228712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3153595 (or 3153591 counting only the distinct ones).

The product of its digits is 4480, while the sum is 29.

The square root of 25228712 is about 5022.8191287364. The cubic root of 25228712 is about 293.2907456537.

The spelling of 25228712 in words is "twenty-five million, two hundred twenty-eight thousand, seven hundred twelve".