5531644523 has 4 divisors (see below), whose sum is σ = 5544245520. Its totient is φ = 5519043528.

The previous prime is 5531644513. The next prime is 5531644549. The reversal of 5531644523 is 3254461355.

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 5531644523 - 2⁴ = 5531644507 is a prime.

It is a super-2 number, since 2×5531644523² = 61198182257671795058, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5531644513) 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, 6299840 + ... + 6300717.

It is an arithmetic number, because the mean of its divisors is an integer number (1386061380).

Almost surely, 2^5531644523 is an apocalyptic number.

5531644523 is a deficient number, since it is larger than the sum of its proper divisors (12600997).

5531644523 is a wasteful number, since it uses less digits than its factorization.

5531644523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12600996.

The product of its digits is 216000, while the sum is 38.

The square root of 5531644523 is about 74375.0262050374. The cubic root of 5531644523 is about 1768.5530348281.

The spelling of 5531644523 in words is "five billion, five hundred thirty-one million, six hundred forty-four thousand, five hundred twenty-three".