5265145591 has 4 divisors (see below), whose sum is σ = 5265309184. Its totient is φ = 5264982000.

The previous prime is 5265145549. The next prime is 5265145603. The reversal of 5265145591 is 1955415625.

It is a happy number.

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 5265145591 - 2¹⁷ = 5265014519 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 (5265145511) 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, 15735 + ... + 103816.

It is an arithmetic number, because the mean of its divisors is an integer number (1316327296).

Almost surely, 2^5265145591 is an apocalyptic number.

5265145591 is a deficient number, since it is larger than the sum of its proper divisors (163593).

5265145591 is a wasteful number, since it uses less digits than its factorization.

5265145591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163592.

The product of its digits is 270000, while the sum is 43.

The square root of 5265145591 is about 72561.3229689206. The cubic root of 5265145591 is about 1739.6830345922.

The spelling of 5265145591 in words is "five billion, two hundred sixty-five million, one hundred forty-five thousand, five hundred ninety-one".