5265663191 has 4 divisors (see below), whose sum is σ = 5303545800. Its totient is φ = 5227780584.

The previous prime is 5265663187. The next prime is 5265663209. The reversal of 5265663191 is 1913665625.

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 5265663191 - 2² = 5265663187 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 (5265663121) 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, 18941096 + ... + 18941373.

It is an arithmetic number, because the mean of its divisors is an integer number (1325886450).

Almost surely, 2^5265663191 is an apocalyptic number.

5265663191 is a deficient number, since it is larger than the sum of its proper divisors (37882609).

5265663191 is a wasteful number, since it uses less digits than its factorization.

5265663191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37882608.

The product of its digits is 291600, while the sum is 44.

The square root of 5265663191 is about 72564.8895196568. The cubic root of 5265663191 is about 1739.7400403240.

The spelling of 5265663191 in words is "five billion, two hundred sixty-five million, six hundred sixty-three thousand, one hundred ninety-one".