25410013205 has 4 divisors (see below), whose sum is σ = 30492015852. Its totient is φ = 20328010560.

The previous prime is 25410013201. The next prime is 25410013241. The reversal of 25410013205 is 50231001452.

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 20016873361 + 5393139844 = 141481^2 + 73438^2 .

It is not a de Polignac number, because 25410013205 - 2² = 25410013201 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 (25410013201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2541001316 + ... + 2541001325.

It is an arithmetic number, because the mean of its divisors is an integer number (7623003963).

Almost surely, 2^25410013205 is an apocalyptic number.

It is an amenable number.

25410013205 is a deficient number, since it is larger than the sum of its proper divisors (5082002647).

25410013205 is an equidigital number, since it uses as much as digits as its factorization.

25410013205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5082002646.

The product of its (nonzero) digits is 1200, while the sum is 23.

Adding to 25410013205 its reverse (50231001452), we get a palindrome (75641014657).

The spelling of 25410013205 in words is "twenty-five billion, four hundred ten million, thirteen thousand, two hundred five".