25213043050213 has 4 divisors (see below), whose sum is σ = 25317661486348. Its totient is φ = 25108424614080.

The previous prime is 25213043050207. The next prime is 25213043050243. The reversal of 25213043050213 is 31205034031252.

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 13802956244289 + 11410086805924 = 3715233^2 + 3377882^2 .

It is a cyclic number.

It is not a de Polignac number, because 25213043050213 - 2¹³ = 25213043042021 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 (25213043050243) 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, 52309217706 + ... + 52309218187.

It is an arithmetic number, because the mean of its divisors is an integer number (6329415371587).

Almost surely, 2^{25213043050213} is an apocalyptic number.

It is an amenable number.

25213043050213 is a deficient number, since it is larger than the sum of its proper divisors (104618436135).

25213043050213 is a wasteful number, since it uses less digits than its factorization.

25213043050213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104618436134.

The product of its (nonzero) digits is 21600, while the sum is 31.

Adding to 25213043050213 its reverse (31205034031252), we get a palindrome (56418077081465).

The spelling of 25213043050213 in words is "twenty-five trillion, two hundred thirteen billion, forty-three million, fifty thousand, two hundred thirteen".