25260240600409 has 2 divisors, whose sum is σ = 25260240600410. Its totient is φ = 25260240600408.

The previous prime is 25260240600403. The next prime is 25260240600431. The reversal of 25260240600409 is 90400604206252.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17185709169225 + 8074531431184 = 4145565^2 + 2841572^2 .

It is a cyclic number.

It is not a de Polignac number, because 25260240600409 - 2³ = 25260240600401 is a prime.

It is not a weakly prime, because it can be changed into another prime (25260240600401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12630120300204 + 12630120300205.

It is an arithmetic number, because the mean of its divisors is an integer number (12630120300205).

Almost surely, 2^{25260240600409} is an apocalyptic number.

It is an amenable number.

25260240600409 is a deficient number, since it is larger than the sum of its proper divisors (1).

25260240600409 is an equidigital number, since it uses as much as digits as its factorization.

25260240600409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 207360, while the sum is 40.

The spelling of 25260240600409 in words is "twenty-five trillion, two hundred sixty billion, two hundred forty million, six hundred thousand, four hundred nine".