25045600505 has 16 divisors (see below), whose sum is σ = 30813123600. Its totient is φ = 19531683840.

The previous prime is 25045600439. The next prime is 25045600607. The reversal of 25045600505 is 50500654052.

It can be written as a sum of positive squares in 8 ways, for example, as 98029801 + 24947570704 = 9901^2 + 157948^2 .

It is a de Polignac number, because none of the positive numbers 2^k-25045600505 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 202241 + ... + 301649.

It is an arithmetic number, because the mean of its divisors is an integer number (1925820225).

Almost surely, 2^25045600505 is an apocalyptic number.

It is an amenable number.

25045600505 is a deficient number, since it is larger than the sum of its proper divisors (5767523095).

25045600505 is a wasteful number, since it uses less digits than its factorization.

25045600505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100684.

The product of its (nonzero) digits is 30000, while the sum is 32.

The spelling of 25045600505 in words is "twenty-five billion, forty-five million, six hundred thousand, five hundred five".