25516412 has 12 divisors (see below), whose sum is σ = 44813496. Its totient is φ = 12712560.

The previous prime is 25516367. The next prime is 25516423. The reversal of 25516412 is 21461552.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10139 + ... + 12402.

It is an arithmetic number, because the mean of its divisors is an integer number (3734458).

Almost surely, 2^25516412 is an apocalyptic number.

It is an amenable number.

25516412 is a deficient number, since it is larger than the sum of its proper divisors (19297084).

25516412 is a wasteful number, since it uses less digits than its factorization.

25516412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22828 (or 22826 counting only the distinct ones).

The product of its digits is 2400, while the sum is 26.

The square root of 25516412 is about 5051.3772379421. The cubic root of 25516412 is about 294.4013984407.

Adding to 25516412 its reverse (21461552), we get a palindrome (46977964).

The spelling of 25516412 in words is "twenty-five million, five hundred sixteen thousand, four hundred twelve".