25280381255 has 4 divisors (see below), whose sum is σ = 30336457512. Its totient is φ = 20224305000.

The previous prime is 25280381237. The next prime is 25280381263. The reversal of 25280381255 is 55218308252.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 25280381255 - 2⁸ = 25280380999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2528038121 + ... + 2528038130.

It is an arithmetic number, because the mean of its divisors is an integer number (7584114378).

Almost surely, 2^25280381255 is an apocalyptic number.

25280381255 is a deficient number, since it is larger than the sum of its proper divisors (5056076257).

25280381255 is an equidigital number, since it uses as much as digits as its factorization.

25280381255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5056076256.

The product of its (nonzero) digits is 192000, while the sum is 41.

The spelling of 25280381255 in words is "twenty-five billion, two hundred eighty million, three hundred eighty-one thousand, two hundred fifty-five".