553431191 has 2 divisors, whose sum is σ = 553431192. Its totient is φ = 553431190.

The previous prime is 553431181. The next prime is 553431227. The reversal of 553431191 is 191134355.

553431191 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-553431191 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (553431181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 276715595 + 276715596.

It is an arithmetic number, because the mean of its divisors is an integer number (276715596).

Almost surely, 2^553431191 is an apocalyptic number.

553431191 is a deficient number, since it is larger than the sum of its proper divisors (1).

553431191 is an equidigital number, since it uses as much as digits as its factorization.

553431191 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8100, while the sum is 32.

The square root of 553431191 is about 23525.1182993837. The cubic root of 553431191 is about 821.0215263160.

The spelling of 553431191 in words is "five hundred fifty-three million, four hundred thirty-one thousand, one hundred ninety-one".