25917278483 has 2 divisors, whose sum is σ = 25917278484. Its totient is φ = 25917278482.

The previous prime is 25917278459. The next prime is 25917278503. The reversal of 25917278483 is 38487271952.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25917278483 - 2⁶ = 25917278419 is a prime.

It is not a weakly prime, because it can be changed into another prime (25917278083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12958639241 + 12958639242.

It is an arithmetic number, because the mean of its divisors is an integer number (12958639242).

Almost surely, 2^25917278483 is an apocalyptic number.

25917278483 is a deficient number, since it is larger than the sum of its proper divisors (1).

25917278483 is an equidigital number, since it uses as much as digits as its factorization.

25917278483 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6773760, while the sum is 56.

The spelling of 25917278483 in words is "twenty-five billion, nine hundred seventeen million, two hundred seventy-eight thousand, four hundred eighty-three".