5531233391 has 2 divisors, whose sum is σ = 5531233392. Its totient is φ = 5531233390.

The previous prime is 5531233349. The next prime is 5531233403. The reversal of 5531233391 is 1933321355.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5531233391 - 2⁶ = 5531233327 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5531233691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2765616695 + 2765616696.

It is an arithmetic number, because the mean of its divisors is an integer number (2765616696).

Almost surely, 2^5531233391 is an apocalyptic number.

5531233391 is a deficient number, since it is larger than the sum of its proper divisors (1).

5531233391 is an equidigital number, since it uses as much as digits as its factorization.

5531233391 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36450, while the sum is 35.

The square root of 5531233391 is about 74372.2622420483. The cubic root of 5531233391 is about 1768.5092186382.

The spelling of 5531233391 in words is "five billion, five hundred thirty-one million, two hundred thirty-three thousand, three hundred ninety-one".