5531906613 has 12 divisors (see below), whose sum is σ = 7551404160. Its totient is φ = 3602168136.

The previous prime is 5531906603. The next prime is 5531906659. The reversal of 5531906613 is 3166091355.

It is not a de Polignac number, because 5531906613 - 2⁸ = 5531906357 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5531906603) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 493093 + ... + 504186.

It is an arithmetic number, because the mean of its divisors is an integer number (629283680).

Almost surely, 2^5531906613 is an apocalyptic number.

It is an amenable number.

5531906613 is a deficient number, since it is larger than the sum of its proper divisors (2019497547).

5531906613 is an equidigital number, since it uses as much as digits as its factorization.

5531906613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 997368 (or 997325 counting only the distinct ones).

The product of its (nonzero) digits is 72900, while the sum is 39.

The square root of 5531906613 is about 74376.7881331266. The cubic root of 5531906613 is about 1768.5809658073.

Adding to 5531906613 its reverse (3166091355), we get a palindrome (8697997968).

The spelling of 5531906613 in words is "five billion, five hundred thirty-one million, nine hundred six thousand, six hundred thirteen".