25508253255 has 16 divisors (see below), whose sum is σ = 42961269120. Its totient is φ = 12888380448.

The previous prime is 25508253229. The next prime is 25508253301. The reversal of 25508253255 is 55235280552.

It is not a de Polignac number, because 25508253255 - 2⁶ = 25508253191 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 44751037 + ... + 44751606.

It is an arithmetic number, because the mean of its divisors is an integer number (2685079320).

Almost surely, 2^25508253255 is an apocalyptic number.

25508253255 is a deficient number, since it is larger than the sum of its proper divisors (17453015865).

25508253255 is a wasteful number, since it uses less digits than its factorization.

25508253255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89502670.

The product of its (nonzero) digits is 600000, while the sum is 42.

The spelling of 25508253255 in words is "twenty-five billion, five hundred eight million, two hundred fifty-three thousand, two hundred fifty-five".