25772480009 has 2 divisors, whose sum is σ = 25772480010. Its totient is φ = 25772480008.

The previous prime is 25772479963. The next prime is 25772480017. The reversal of 25772480009 is 90008427752.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16136112784 + 9636367225 = 127028^2 + 98165^2 .

It is a cyclic number.

It is not a de Polignac number, because 25772480009 - 2³² = 21477512713 is a prime.

It is not a weakly prime, because it can be changed into another prime (25772482009) 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, 12886240004 + 12886240005.

It is an arithmetic number, because the mean of its divisors is an integer number (12886240005).

Almost surely, 2^25772480009 is an apocalyptic number.

It is an amenable number.

25772480009 is a deficient number, since it is larger than the sum of its proper divisors (1).

25772480009 is an equidigital number, since it uses as much as digits as its factorization.

25772480009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 282240, while the sum is 44.

It can be divided in two parts, 257724 and 80009, that added together give a palindrome (337733).

The spelling of 25772480009 in words is "twenty-five billion, seven hundred seventy-two million, four hundred eighty thousand, nine".