25000000006 has 16 divisors (see below), whose sum is σ = 41189932800. Its totient is φ = 11327230728.

The previous prime is 24999999991. The next prime is 25000000013. The reversal of 25000000006 is 60000000052.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14301186 + ... + 14302933.

It is an arithmetic number, because the mean of its divisors is an integer number (2574370800).

Almost surely, 2^25000000006 is an apocalyptic number.

25000000006 is a deficient number, since it is larger than the sum of its proper divisors (16189932794).

25000000006 is a wasteful number, since it uses less digits than its factorization.

25000000006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28604163.

The product of its (nonzero) digits is 60, while the sum is 13.

Adding to 25000000006 its reverse (60000000052), we get a palindrome (85000000058).

The spelling of 25000000006 in words is "twenty-five billion, six", and thus it is an aban number and an uban number.