25480771 has 2 divisors, whose sum is σ = 25480772. Its totient is φ = 25480770.

The previous prime is 25480759. The next prime is 25480781. The reversal of 25480771 is 17708452.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25480771 - 2⁷ = 25480643 is a prime.

It is not a weakly prime, because it can be changed into another prime (25480781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12740385 + 12740386.

It is an arithmetic number, because the mean of its divisors is an integer number (12740386).

Almost surely, 2^25480771 is an apocalyptic number.

25480771 is a deficient number, since it is larger than the sum of its proper divisors (1).

25480771 is an equidigital number, since it uses as much as digits as its factorization.

25480771 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15680, while the sum is 34.

The square root of 25480771 is about 5047.8481554025. The cubic root of 25480771 is about 294.2642625270.

The spelling of 25480771 in words is "twenty-five million, four hundred eighty thousand, seven hundred seventy-one".