25055350813 has 4 divisors (see below), whose sum is σ = 25863587968. Its totient is φ = 24247113660.

The previous prime is 25055350769. The next prime is 25055350871. The reversal of 25055350813 is 31805355052.

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 25055350813 - 2⁹ = 25055350301 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 (25055350883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 404118531 + ... + 404118592.

It is an arithmetic number, because the mean of its divisors is an integer number (6465896992).

Almost surely, 2^25055350813 is an apocalyptic number.

It is an amenable number.

25055350813 is a deficient number, since it is larger than the sum of its proper divisors (808237155).

25055350813 is an equidigital number, since it uses as much as digits as its factorization.

25055350813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 808237154.

The product of its (nonzero) digits is 90000, while the sum is 37.

The spelling of 25055350813 in words is "twenty-five billion, fifty-five million, three hundred fifty thousand, eight hundred thirteen".