25280000275525 has 12 divisors (see below), whose sum is σ = 31861088873764. Its totient is φ = 19892459232000.

The previous prime is 25280000275451. The next prime is 25280000275571. The reversal of 25280000275525 is 52557200008252.

It can be written as a sum of positive squares in 6 ways, for example, as 3717731572164 + 21562268703361 = 1928142^2 + 4643519^2 .

It is a de Polignac number, because none of the positive numbers 2^k-25280000275525 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8288523156 + ... + 8288526205.

Almost surely, 2^{25280000275525} is an apocalyptic number.

25280000275525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25280000275525 is a deficient number, since it is larger than the sum of its proper divisors (6581088598239).

25280000275525 is a wasteful number, since it uses less digits than its factorization.

25280000275525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16577049432 (or 16577049427 counting only the distinct ones).

The product of its (nonzero) digits is 560000, while the sum is 43.

The spelling of 25280000275525 in words is "twenty-five trillion, two hundred eighty billion, two hundred seventy-five thousand, five hundred twenty-five".