25000125012500 has 72 divisors (see below), whose sum is σ = 59655571361568. Its totient is φ = 9090954500000.

The previous prime is 25000125012469. The next prime is 25000125012631. The reversal of 25000125012500 is 521052100052.

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, 90772046 + ... + 91047045.

It is an arithmetic number, because the mean of its divisors is an integer number (828549602244).

Almost surely, 2^{25000125012500} is an apocalyptic number.

25000125012500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25000125012500 is an abundant number, since it is smaller than the sum of its proper divisors (34655446349068).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25000125012500 is a wasteful number, since it uses less digits than its factorization.

25000125012500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181819131 (or 181819109 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 23.

Adding to 25000125012500 its reverse (521052100052), we get a palindrome (25521177112552).

The spelling of 25000125012500 in words is "twenty-five trillion, one hundred twenty-five million, twelve thousand, five hundred".