25685450341 has 4 divisors (see below), whose sum is σ = 25730592300. Its totient is φ = 25640308384.

The previous prime is 25685450339. The next prime is 25685450363. The reversal of 25685450341 is 14305458652.

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

It can be written as a sum of positive squares in 2 ways, for example, as 11870974116 + 13814476225 = 108954^2 + 117535^2 .

It is a cyclic number.

It is not a de Polignac number, because 25685450341 - 2¹ = 25685450339 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25685450381) 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, 22570126 + ... + 22571263.

It is an arithmetic number, because the mean of its divisors is an integer number (6432648075).

Almost surely, 2^25685450341 is an apocalyptic number.

It is an amenable number.

25685450341 is a deficient number, since it is larger than the sum of its proper divisors (45141959).

25685450341 is an equidigital number, since it uses as much as digits as its factorization.

25685450341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45141958.

The product of its (nonzero) digits is 576000, while the sum is 43.

The spelling of 25685450341 in words is "twenty-five billion, six hundred eighty-five million, four hundred fifty thousand, three hundred forty-one".