25042225213 has 8 divisors (see below), whose sum is σ = 25670503800. Its totient is φ = 24421655808.

The previous prime is 25042225199. The next prime is 25042225297. The reversal of 25042225213 is 31252224052.

It can be written as a sum of positive squares in 4 ways, for example, as 2046929049 + 22995296164 = 45243^2 + 151642^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 25042225213 - 2⁵ = 25042225181 is a prime.

It is a super-2 number, since 2×25042225213² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25042229213) 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, 1920718 + ... + 1933711.

It is an arithmetic number, because the mean of its divisors is an integer number (3208812975).

Almost surely, 2^25042225213 is an apocalyptic number.

It is an amenable number.

25042225213 is a deficient number, since it is larger than the sum of its proper divisors (628278587).

25042225213 is an equidigital number, since it uses as much as digits as its factorization.

25042225213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3854591.

The product of its (nonzero) digits is 9600, while the sum is 28.

Adding to 25042225213 its reverse (31252224052), we get a palindrome (56294449265).

The spelling of 25042225213 in words is "twenty-five billion, forty-two million, two hundred twenty-five thousand, two hundred thirteen".