2500013900025 has 18 divisors (see below), whose sum is σ = 4477802674670. Its totient is φ = 1333340746560.

The previous prime is 2500013899979. The next prime is 2500013900039. The reversal of 2500013900025 is 5200093100052.

2500013900025 is a `hidden beast` number, since 2 + 500 + 0 + 139 + 0 + 0 + 0 + 25 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 35540921529 + 2464472978496 = 188523^2 + 1569864^2 .

It is not a de Polignac number, because 2500013900025 - 2⁶ = 2500013899961 is a prime.

It is a Curzon 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 17 ways as a sum of consecutive naturals, for example, 5555586220 + ... + 5555586669.

Almost surely, 2^{2500013900025} is an apocalyptic number.

2500013900025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2500013900025 is a deficient number, since it is larger than the sum of its proper divisors (1977788774645).

2500013900025 is a wasteful number, since it uses less digits than its factorization.

2500013900025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11111172905 (or 11111172897 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The spelling of 2500013900025 in words is "two trillion, five hundred billion, thirteen million, nine hundred thousand, twenty-five".