2500525905 has 32 divisors (see below), whose sum is σ = 4098124800. Its totient is φ = 1301514432.

The previous prime is 2500525901. The next prime is 2500525919. The reversal of 2500525905 is 5095250052.

It is not a de Polignac number, because 2500525905 - 2² = 2500525901 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2500525901) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 112852 + ... + 133178.

It is an arithmetic number, because the mean of its divisors is an integer number (128066400).

Almost surely, 2^2500525905 is an apocalyptic number.

It is an amenable number.

2500525905 is a deficient number, since it is larger than the sum of its proper divisors (1597598895).

2500525905 is a wasteful number, since it uses less digits than its factorization.

2500525905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20533.

The product of its (nonzero) digits is 22500, while the sum is 33.

The square root of 2500525905 is about 50005.2587734530. The cubic root of 2500525905 is about 1357.3039700114.

Adding to 2500525905 its reverse (5095250052), we get a palindrome (7595775957).

The spelling of 2500525905 in words is "two billion, five hundred million, five hundred twenty-five thousand, nine hundred five".