25900520570 has 16 divisors (see below), whose sum is σ = 48647934720. Its totient is φ = 9909764304.

The previous prime is 25900520543. The next prime is 25900520579. The reversal of 25900520570 is 7502500952.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 25900520570.

It is not an unprimeable number, because it can be changed into a prime (25900520579) 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 7 ways as a sum of consecutive naturals, for example, 56305250 + ... + 56305709.

It is an arithmetic number, because the mean of its divisors is an integer number (3040495920).

Almost surely, 2^25900520570 is an apocalyptic number.

25900520570 is a deficient number, since it is larger than the sum of its proper divisors (22747414150).

25900520570 is a wasteful number, since it uses less digits than its factorization.

25900520570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112610989.

The product of its (nonzero) digits is 31500, while the sum is 35.

The spelling of 25900520570 in words is "twenty-five billion, nine hundred million, five hundred twenty thousand, five hundred seventy".