25205002004525 has 24 divisors (see below), whose sum is σ = 35719313650944. Its totient is φ = 17283321028800.

The previous prime is 25205002004519. The next prime is 25205002004629. The reversal of 25205002004525 is 52540020050252.

It is not a de Polignac number, because 25205002004525 - 2¹⁰ = 25205002003501 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25205002004491 and 25205002004500.

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, 35518940 + ... + 36221610.

It is an arithmetic number, because the mean of its divisors is an integer number (1488304735456).

Almost surely, 2^{25205002004525} is an apocalyptic number.

25205002004525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25205002004525 is a deficient number, since it is larger than the sum of its proper divisors (10514311646419).

25205002004525 is a wasteful number, since it uses less digits than its factorization.

25205002004525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 907661 (or 907656 counting only the distinct ones).

The product of its (nonzero) digits is 40000, while the sum is 32.

Adding to 25205002004525 its reverse (52540020050252), we get a palindrome (77745022054777).

The spelling of 25205002004525 in words is "twenty-five trillion, two hundred five billion, two million, four thousand, five hundred twenty-five".