2500012500025 has 24 divisors (see below), whose sum is σ = 3311416932984. Its totient is φ = 1865704243200.

The previous prime is 2500012499977. The next prime is 2500012500079. The reversal of 2500012500025 is 5200052100052.

It can be written as a sum of positive squares in 12 ways, for example, as 251164352569 + 2248848147456 = 501163^2 + 1499616^2 .

It is not a de Polignac number, because 2500012500025 - 2¹¹ = 2500012497977 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2500012499969 and 2500012500005.

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, 25980216 + ... + 26076265.

It is an arithmetic number, because the mean of its divisors is an integer number (137975705541).

Almost surely, 2^{2500012500025} is an apocalyptic number.

2500012500025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2500012500025 is a deficient number, since it is larger than the sum of its proper divisors (811404432959).

2500012500025 is a wasteful number, since it uses less digits than its factorization.

2500012500025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52056621 (or 52056616 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 22.

Adding to 2500012500025 its reverse (5200052100052), we get a palindrome (7700064600077).

The spelling of 2500012500025 in words is "two trillion, five hundred billion, twelve million, five hundred thousand, twenty-five".