25051520125 has 16 divisors (see below), whose sum is σ = 31286428992. Its totient is φ = 20027029200.

The previous prime is 25051520119. The next prime is 25051520129. The reversal of 25051520125 is 52102515052.

It is not a de Polignac number, because 25051520125 - 2⁹ = 25051519613 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25051520093 and 25051520102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25051520129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 108154 + ... + 248596.

It is an arithmetic number, because the mean of its divisors is an integer number (1955401812).

Almost surely, 2^25051520125 is an apocalyptic number.

25051520125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25051520125 is a deficient number, since it is larger than the sum of its proper divisors (6234908867).

25051520125 is a wasteful number, since it uses less digits than its factorization.

25051520125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141885 (or 141875 counting only the distinct ones).

The product of its (nonzero) digits is 5000, while the sum is 28.

The spelling of 25051520125 in words is "twenty-five billion, fifty-one million, five hundred twenty thousand, one hundred twenty-five".