5549999831 has 2 divisors, whose sum is σ = 5549999832. Its totient is φ = 5549999830.

The previous prime is 5549999789. The next prime is 5549999867. The reversal of 5549999831 is 1389999455.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5549999831 - 2¹⁴ = 5549983447 is a prime.

It is a super-2 number, since 2×5549999831² = 61604996248200057122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5549999131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2774999915 + 2774999916.

It is an arithmetic number, because the mean of its divisors is an integer number (2774999916).

Almost surely, 2^5549999831 is an apocalyptic number.

5549999831 is a deficient number, since it is larger than the sum of its proper divisors (1).

5549999831 is an equidigital number, since it uses as much as digits as its factorization.

5549999831 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15746400, while the sum is 62.

The square root of 5549999831 is about 74498.3209945030. The cubic root of 5549999831 is about 1770.5070345636.

The spelling of 5549999831 in words is "five billion, five hundred forty-nine million, nine hundred ninety-nine thousand, eight hundred thirty-one".