25055500030505 has 16 divisors (see below), whose sum is σ = 34632394199040. Its totient is φ = 17045631513792.

The previous prime is 25055500030453. The next prime is 25055500030543. The reversal of 25055500030505 is 50503000555052.

It is not a de Polignac number, because 25055500030505 - 2¹² = 25055500026409 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2818387010 + ... + 2818395899.

It is an arithmetic number, because the mean of its divisors is an integer number (2164524637440).

Almost surely, 2^{25055500030505} is an apocalyptic number.

It is an amenable number.

25055500030505 is a deficient number, since it is larger than the sum of its proper divisors (9576894168535).

25055500030505 is a wasteful number, since it uses less digits than its factorization.

25055500030505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5636783048.

The product of its (nonzero) digits is 93750, while the sum is 35.

Adding to 25055500030505 its reverse (50503000555052), we get a palindrome (75558500585557).

The spelling of 25055500030505 in words is "twenty-five trillion, fifty-five billion, five hundred million, thirty thousand, five hundred five".