25000503025505 has 32 divisors (see below), whose sum is σ = 34756784999424. Its totient is φ = 16908021167616.

The previous prime is 25000503025469. The next prime is 25000503025507. The reversal of 25000503025505 is 50552030500052.

It is a cyclic number.

It is not a de Polignac number, because 25000503025505 - 2¹² = 25000503021409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25000503025507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 237452504 + ... + 237557766.

It is an arithmetic number, because the mean of its divisors is an integer number (1086149531232).

Almost surely, 2^{25000503025505} is an apocalyptic number.

It is an amenable number.

25000503025505 is a deficient number, since it is larger than the sum of its proper divisors (9756281973919).

25000503025505 is a wasteful number, since it uses less digits than its factorization.

25000503025505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198305.

The product of its (nonzero) digits is 37500, while the sum is 32.

Adding to 25000503025505 its reverse (50552030500052), we get a palindrome (75552533525557).

The spelling of 25000503025505 in words is "twenty-five trillion, five hundred three million, twenty-five thousand, five hundred five".