25450053211 has 4 divisors (see below), whose sum is σ = 27763694424. Its totient is φ = 23136412000.

The previous prime is 25450053197. The next prime is 25450053263. The reversal of 25450053211 is 11235005452.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 25450053211 - 2⁵ = 25450053179 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25450053211.

It is not an unprimeable number, because it can be changed into a prime (25450053281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1156820590 + ... + 1156820611.

It is an arithmetic number, because the mean of its divisors is an integer number (6940923606).

Almost surely, 2^25450053211 is an apocalyptic number.

25450053211 is a deficient number, since it is larger than the sum of its proper divisors (2313641213).

25450053211 is a wasteful number, since it uses less digits than its factorization.

25450053211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2313641212.

The product of its (nonzero) digits is 6000, while the sum is 28.

Adding to 25450053211 its reverse (11235005452), we get a palindrome (36685058663).

The spelling of 25450053211 in words is "twenty-five billion, four hundred fifty million, fifty-three thousand, two hundred eleven".