25206560219 has 2 divisors, whose sum is σ = 25206560220. Its totient is φ = 25206560218.

The previous prime is 25206560207. The next prime is 25206560233. The reversal of 25206560219 is 91206560252.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25206560219 - 2¹⁶ = 25206494683 is a prime.

It is a super-2 number, since 2×25206560219² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (25206560419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12603280109 + 12603280110.

It is an arithmetic number, because the mean of its divisors is an integer number (12603280110).

Almost surely, 2^25206560219 is an apocalyptic number.

25206560219 is a deficient number, since it is larger than the sum of its proper divisors (1).

25206560219 is an equidigital number, since it uses as much as digits as its factorization.

25206560219 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64800, while the sum is 38.

The spelling of 25206560219 in words is "twenty-five billion, two hundred six million, five hundred sixty thousand, two hundred nineteen".