25012 has 18 divisors (see below), whose sum is σ = 48678. Its totient is φ = 11232.

The previous prime is 24989. The next prime is 25013. The reversal of 25012 is 21052.

It can be written as a sum of positive squares in 3 ways, for example, as 1296 + 23716 = 36^2 + 154^2 .

It is an alternating number because its digits alternate between even and odd.

It is a nialpdrome in base 13.

It is a self number, because there is not a number n which added to its sum of digits gives 25012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25013) 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 5 ways as a sum of consecutive naturals, for example, 658 + ... + 694.

2²⁵⁰¹² is an apocalyptic number.

It is an amenable number.

25012 is a deficient number, since it is larger than the sum of its proper divisors (23666).

25012 is a wasteful number, since it uses less digits than its factorization.

25012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67 (or 52 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 10.

The square root of 25012 is about 158.1518257878. The cubic root of 25012 is about 29.2448550622.

Adding to 25012 its reverse (21052), we get a palindrome (46064).

It can be divided in two parts, 250 and 12, that added together give a palindrome (262).

The spelling of 25012 in words is "twenty-five thousand, twelve".