25713730559 has 4 divisors (see below), whose sum is σ = 28051342440. Its totient is φ = 23376118680.

The previous prime is 25713730529. The next prime is 25713730583. The reversal of 25713730559 is 95503731752.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25713730559 is a prime.

It is a super-2 number, since 2×25713730559² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25713730529) 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 in 3 ways as a sum of consecutive naturals, for example, 1168805924 + ... + 1168805945.

It is an arithmetic number, because the mean of its divisors is an integer number (7012835610).

Almost surely, 2^25713730559 is an apocalyptic number.

25713730559 is a deficient number, since it is larger than the sum of its proper divisors (2337611881).

25713730559 is a wasteful number, since it uses less digits than its factorization.

25713730559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2337611880.

The product of its (nonzero) digits is 992250, while the sum is 47.

The spelling of 25713730559 in words is "twenty-five billion, seven hundred thirteen million, seven hundred thirty thousand, five hundred fifty-nine".