25584120213 has 4 divisors (see below), whose sum is σ = 34112160288. Its totient is φ = 17056080140.

The previous prime is 25584120209. The next prime is 25584120223. The reversal of 25584120213 is 31202148552.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 25584120213 - 2² = 25584120209 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25584120223) 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, 4264020033 + ... + 4264020038.

It is an arithmetic number, because the mean of its divisors is an integer number (8528040072).

Almost surely, 2^25584120213 is an apocalyptic number.

It is an amenable number.

25584120213 is a deficient number, since it is larger than the sum of its proper divisors (8528040075).

25584120213 is an equidigital number, since it uses as much as digits as its factorization.

25584120213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8528040074.

The product of its (nonzero) digits is 19200, while the sum is 33.

Adding to 25584120213 its reverse (31202148552), we get a palindrome (56786268765).

The spelling of 25584120213 in words is "twenty-five billion, five hundred eighty-four million, one hundred twenty thousand, two hundred thirteen".