5291145523 has 4 divisors (see below), whose sum is σ = 5295207568. Its totient is φ = 5287083480.

The previous prime is 5291145493. The next prime is 5291145533. The reversal of 5291145523 is 3255411925.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5291145523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5291145533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2029068 + ... + 2031673.

It is an arithmetic number, because the mean of its divisors is an integer number (1323801892).

Almost surely, 2^5291145523 is an apocalyptic number.

5291145523 is a deficient number, since it is larger than the sum of its proper divisors (4062045).

5291145523 is a wasteful number, since it uses less digits than its factorization.

5291145523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4062044.

The product of its digits is 54000, while the sum is 37.

The square root of 5291145523 is about 72740.2606745398. The cubic root of 5291145523 is about 1742.5419229985.

The spelling of 5291145523 in words is "five billion, two hundred ninety-one million, one hundred forty-five thousand, five hundred twenty-three".