25205065343 has 4 divisors (see below), whose sum is σ = 25235543880. Its totient is φ = 25174586808.

The previous prime is 25205065321. The next prime is 25205065367. The reversal of 25205065343 is 34356050252.

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

It is a cyclic number.

It is not a de Polignac number, because 25205065343 - 2¹⁴ = 25205048959 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 (25205065393) 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, 15238028 + ... + 15239681.

It is an arithmetic number, because the mean of its divisors is an integer number (6308885970).

Almost surely, 2^25205065343 is an apocalyptic number.

25205065343 is a deficient number, since it is larger than the sum of its proper divisors (30478537).

25205065343 is an equidigital number, since it uses as much as digits as its factorization.

25205065343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30478536.

The product of its (nonzero) digits is 108000, while the sum is 35.

The spelling of 25205065343 in words is "twenty-five billion, two hundred five million, sixty-five thousand, three hundred forty-three".