25505052803028 has 72 divisors (see below), whose sum is σ = 65033888355072. Its totient is φ = 8427748612032.

The previous prime is 25505052802997. The next prime is 25505052803033. The reversal of 25505052803028 is 82030825050552.

25505052803028 is a `hidden beast` number, since 2 + 5 + 50 + 50 + 528 + 0 + 3 + 0 + 28 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3573375 + ... + 7986182.

It is an arithmetic number, because the mean of its divisors is an integer number (903248449376).

Almost surely, 2^{25505052803028} is an apocalyptic number.

It is an amenable number.

25505052803028 is an abundant number, since it is smaller than the sum of its proper divisors (39528835552044).

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

25505052803028 is a wasteful number, since it uses less digits than its factorization.

25505052803028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11560101 (or 11560096 counting only the distinct ones).

The product of its (nonzero) digits is 960000, while the sum is 45.

The spelling of 25505052803028 in words is "twenty-five trillion, five hundred five billion, fifty-two million, eight hundred three thousand, twenty-eight".