25795994311 has 4 divisors (see below), whose sum is σ = 25827338992. Its totient is φ = 25764649632.

The previous prime is 25795994303. The next prime is 25795994339. The reversal of 25795994311 is 11349959752.

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 25795994311 - 2³ = 25795994303 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 (25795494311) 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, 15671106 + ... + 15672751.

It is an arithmetic number, because the mean of its divisors is an integer number (6456834748).

Almost surely, 2^25795994311 is an apocalyptic number.

25795994311 is a deficient number, since it is larger than the sum of its proper divisors (31344681).

25795994311 is an equidigital number, since it uses as much as digits as its factorization.

25795994311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31344680.

The product of its digits is 3061800, while the sum is 55.

The spelling of 25795994311 in words is "twenty-five billion, seven hundred ninety-five million, nine hundred ninety-four thousand, three hundred eleven".