25073320611 has 4 divisors (see below), whose sum is σ = 33431094152. Its totient is φ = 16715547072.

The previous prime is 25073320543. The next prime is 25073320651. The reversal of 25073320611 is 11602337052.

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

It is not a de Polignac number, because 25073320611 - 2¹¹ = 25073318563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25073320651) 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, 4178886766 + ... + 4178886771.

It is an arithmetic number, because the mean of its divisors is an integer number (8357773538).

Almost surely, 2^25073320611 is an apocalyptic number.

25073320611 is a deficient number, since it is larger than the sum of its proper divisors (8357773541).

25073320611 is an equidigital number, since it uses as much as digits as its factorization.

25073320611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8357773540.

The product of its (nonzero) digits is 7560, while the sum is 30.

Adding to 25073320611 its reverse (11602337052), we get a palindrome (36675657663).

The spelling of 25073320611 in words is "twenty-five billion, seventy-three million, three hundred twenty thousand, six hundred eleven".