25722782029513 has 2 divisors, whose sum is σ = 25722782029514. Its totient is φ = 25722782029512.

The previous prime is 25722782029459. The next prime is 25722782029517. The reversal of 25722782029513 is 31592028722752.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16325050342329 + 9397731687184 = 4040427^2 + 3065572^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25722782029513 is a prime.

It is not a weakly prime, because it can be changed into another prime (25722782029517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12861391014756 + 12861391014757.

It is an arithmetic number, because the mean of its divisors is an integer number (12861391014757).

Almost surely, 2^{25722782029513} is an apocalyptic number.

It is an amenable number.

25722782029513 is a deficient number, since it is larger than the sum of its proper divisors (1).

25722782029513 is an equidigital number, since it uses as much as digits as its factorization.

25722782029513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8467200, while the sum is 55.

The spelling of 25722782029513 in words is "twenty-five trillion, seven hundred twenty-two billion, seven hundred eighty-two million, twenty-nine thousand, five hundred thirteen".