25280255775 has 24 divisors (see below), whose sum is σ = 42768711040. Its totient is φ = 13169247840.

The previous prime is 25280255771. The next prime is 25280255783. The reversal of 25280255775 is 57755208252.

It is not a de Polignac number, because 25280255775 - 2² = 25280255771 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25280255771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3916195 + ... + 3922644.

Almost surely, 2^25280255775 is an apocalyptic number.

25280255775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

25280255775 is a deficient number, since it is larger than the sum of its proper divisors (17488455265).

25280255775 is a wasteful number, since it uses less digits than its factorization.

25280255775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7838895 (or 7838890 counting only the distinct ones).

The product of its (nonzero) digits is 1960000, while the sum is 48.

The spelling of 25280255775 in words is "twenty-five billion, two hundred eighty million, two hundred fifty-five thousand, seven hundred seventy-five".