25352769289 has 4 divisors (see below), whose sum is σ = 25381482256.
Its totient is φ = 25324056324.
The previous prime is 25352769287. The next prime is 25352769331. The reversal of 25352769289 is 98296725352.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 25352769289 - 21 = 25352769287 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (25352769287) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14355159 + ... + 14356924.
It is an arithmetic number, because the mean of its divisors is an integer number (6345370564).
Almost surely, 225352769289 is an apocalyptic number.
It is an amenable number.
25352769289 is a deficient number, since it is larger than the sum of its proper divisors (28712967).
25352769289 is an equidigital number, since it uses as much as digits as its factorization.
25352769289 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 28712966.
The product of its digits is 16329600, while the sum is 58.
The spelling of 25352769289 in words is "twenty-five billion, three hundred fifty-two million, seven hundred sixty-nine thousand, two hundred eighty-nine".