25250139025 has 6 divisors (see below), whose sum is σ = 31310172422. Its totient is φ = 20200111200.

The previous prime is 25250139011. The next prime is 25250139119. The reversal of 25250139025 is 52093105252.

It can be written as a sum of positive squares in 3 ways, for example, as 750376449 + 24499762576 = 27393^2 + 156524^2 .

It is not a de Polignac number, because 25250139025 - 2⁷ = 25250138897 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 505002756 + ... + 505002805.

Almost surely, 2^25250139025 is an apocalyptic number.

25250139025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25250139025 is a deficient number, since it is larger than the sum of its proper divisors (6060033397).

25250139025 is a wasteful number, since it uses less digits than its factorization.

25250139025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1010005571 (or 1010005566 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 34.

The spelling of 25250139025 in words is "twenty-five billion, two hundred fifty million, one hundred thirty-nine thousand, twenty-five".