25596738329 has 2 divisors, whose sum is σ = 25596738330. Its totient is φ = 25596738328.

The previous prime is 25596738317. The next prime is 25596738337. The reversal of 25596738329 is 92383769552.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24062214400 + 1534523929 = 155120^2 + 39173^2 .

It is a cyclic number.

It is not a de Polignac number, because 25596738329 - 2¹⁶ = 25596672793 is a prime.

It is not a weakly prime, because it can be changed into another prime (25596738389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12798369164 + 12798369165.

It is an arithmetic number, because the mean of its divisors is an integer number (12798369165).

Almost surely, 2^25596738329 is an apocalyptic number.

It is an amenable number.

25596738329 is a deficient number, since it is larger than the sum of its proper divisors (1).

25596738329 is an equidigital number, since it uses as much as digits as its factorization.

25596738329 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24494400, while the sum is 59.

The spelling of 25596738329 in words is "twenty-five billion, five hundred ninety-six million, seven hundred thirty-eight thousand, three hundred twenty-nine".