5531644513 has 2 divisors, whose sum is σ = 5531644514. Its totient is φ = 5531644512.

The previous prime is 5531644507. The next prime is 5531644549. The reversal of 5531644513 is 3154461355.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3180170449 + 2351474064 = 56393^2 + 48492^2 .

It is a cyclic number.

It is not a de Polignac number, because 5531644513 - 2²⁹ = 4994773601 is a prime.

It is not a weakly prime, because it can be changed into another prime (5531644213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2765822256 + 2765822257.

It is an arithmetic number, because the mean of its divisors is an integer number (2765822257).

Almost surely, 2^5531644513 is an apocalyptic number.

It is an amenable number.

5531644513 is a deficient number, since it is larger than the sum of its proper divisors (1).

5531644513 is an equidigital number, since it uses as much as digits as its factorization.

5531644513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108000, while the sum is 37.

The square root of 5531644513 is about 74375.0261378105. The cubic root of 5531644513 is about 1768.5530337624.

The spelling of 5531644513 in words is "five billion, five hundred thirty-one million, six hundred forty-four thousand, five hundred thirteen".