25202243213 has 8 divisors (see below), whose sum is σ = 29057454528. Its totient is φ = 21410754624.

The previous prime is 25202243191. The next prime is 25202243243. The reversal of 25202243213 is 31234220252.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25202243213 - 2⁶ = 25202243149 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 (25202243243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15929831 + ... + 15931412.

It is an arithmetic number, because the mean of its divisors is an integer number (3632181816).

Almost surely, 2^25202243213 is an apocalyptic number.

It is an amenable number.

25202243213 is a deficient number, since it is larger than the sum of its proper divisors (3855211315).

25202243213 is a wasteful number, since it uses less digits than its factorization.

25202243213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31861363.

The product of its (nonzero) digits is 5760, while the sum is 26.

Adding to 25202243213 its reverse (31234220252), we get a palindrome (56436463465).

The spelling of 25202243213 in words is "twenty-five billion, two hundred two million, two hundred forty-three thousand, two hundred thirteen".