25265251277525 has 12 divisors (see below), whose sum is σ = 35804470382112. Its totient is φ = 17324743733040.

The previous prime is 25265251277459. The next prime is 25265251277531. The reversal of 25265251277525 is 52577215256252.

It is a happy number.

It is not a de Polignac number, because 25265251277525 - 2¹⁰ = 25265251276501 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 72186432047 + ... + 72186432396.

It is an arithmetic number, because the mean of its divisors is an integer number (2983705865176).

Almost surely, 2^{25265251277525} is an apocalyptic number.

25265251277525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25265251277525 is a deficient number, since it is larger than the sum of its proper divisors (10539219104587).

25265251277525 is a wasteful number, since it uses less digits than its factorization.

25265251277525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144372864460 (or 144372864455 counting only the distinct ones).

The product of its digits is 29400000, while the sum is 56.

The spelling of 25265251277525 in words is "twenty-five trillion, two hundred sixty-five billion, two hundred fifty-one million, two hundred seventy-seven thousand, five hundred twenty-five".