25252525125 has 48 divisors (see below), whose sum is σ = 47501146368. Its totient is φ = 12882434400.

The previous prime is 25252525117. The next prime is 25252525147. The reversal of 25252525125 is 52152525252.

25252525125 is a `hidden beast` number, since 2 + 5 + 2 + 5 + 2 + 525 + 125 = 666.

It is not a de Polignac number, because 25252525125 - 2³ = 25252525117 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25252525125.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 462097 + ... + 513846.

It is an arithmetic number, because the mean of its divisors is an integer number (989607216).

Almost surely, 2^25252525125 is an apocalyptic number.

25252525125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25252525125 is a deficient number, since it is larger than the sum of its proper divisors (22248621243).

25252525125 is a wasteful number, since it uses less digits than its factorization.

25252525125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 975987 (or 975974 counting only the distinct ones).

The product of its digits is 100000, while the sum is 36.

The spelling of 25252525125 in words is "twenty-five billion, two hundred fifty-two million, five hundred twenty-five thousand, one hundred twenty-five".