25028053055525 has 12 divisors (see below), whose sum is σ = 33422077003812. Its totient is φ = 18482254563840.

The previous prime is 25028053055521. The next prime is 25028053055539. The reversal of 25028053055525 is 52555035082052.

It can be written as a sum of positive squares in 6 ways, for example, as 1765884845956 + 23262168209569 = 1328866^2 + 4823087^2 .

It is not a de Polignac number, because 25028053055525 - 2² = 25028053055521 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25028053055525.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25028053055521) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38504696684 + ... + 38504697333.

It is an arithmetic number, because the mean of its divisors is an integer number (2785173083651).

Almost surely, 2^{25028053055525} is an apocalyptic number.

25028053055525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25028053055525 is a deficient number, since it is larger than the sum of its proper divisors (8394023948287).

25028053055525 is a wasteful number, since it uses less digits than its factorization.

25028053055525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77009394040 (or 77009394035 counting only the distinct ones).

The product of its (nonzero) digits is 3000000, while the sum is 47.

The spelling of 25028053055525 in words is "twenty-five trillion, twenty-eight billion, fifty-three million, fifty-five thousand, five hundred twenty-five".