25064427717 has 36 divisors (see below), whose sum is σ = 44592428556. Its totient is φ = 13480024320.

The previous prime is 25064427691. The next prime is 25064427763. The reversal of 25064427717 is 71772446052.

It can be written as a sum of positive squares in 2 ways, for example, as 13272422436 + 11792005281 = 115206^2 + 108591^2 .

It is not a de Polignac number, because 25064427717 - 2¹⁶ = 25064362181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25064427797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1664134 + ... + 1679127.

It is an arithmetic number, because the mean of its divisors is an integer number (1238678571).

Almost surely, 2^25064427717 is an apocalyptic number.

It is an amenable number.

25064427717 is a deficient number, since it is larger than the sum of its proper divisors (19528000839).

25064427717 is a wasteful number, since it uses less digits than its factorization.

25064427717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3343298 (or 3343288 counting only the distinct ones).

The product of its (nonzero) digits is 658560, while the sum is 45.

The spelling of 25064427717 in words is "twenty-five billion, sixty-four million, four hundred twenty-seven thousand, seven hundred seventeen".