25503025050 has 72 divisors (see below), whose sum is σ = 68954739516. Its totient is φ = 6757470720.

The previous prime is 25503025049. The next prime is 25503025061. The reversal of 25503025050 is 5052030552.

It can be written as a sum of positive squares in 6 ways, for example, as 3433842801 + 22069182249 = 58599^2 + 148557^2 .

It is a Curzon number.

It is an unprimeable number.

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 35 ways as a sum of consecutive naturals, for example, 109839 + ... + 251138.

Almost surely, 2^25503025050 is an apocalyptic number.

25503025050 is an abundant number, since it is smaller than the sum of its proper divisors (43451714466).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25503025050 is a wasteful number, since it uses less digits than its factorization.

25503025050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361152 (or 361144 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 27.

It can be divided in two parts, 2550 and 3025050, that added together give a square (3027600 = 1740²).

The spelling of 25503025050 in words is "twenty-five billion, five hundred three million, twenty-five thousand, fifty".