553897391 has 2 divisors, whose sum is σ = 553897392. Its totient is φ = 553897390.

The previous prime is 553897381. The next prime is 553897403. The reversal of 553897391 is 193798355.

553897391 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 not a de Polignac number, because 553897391 - 2⁶ = 553897327 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 (553897381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 276948695 + 276948696.

It is an arithmetic number, because the mean of its divisors is an integer number (276948696).

Almost surely, 2^553897391 is an apocalyptic number.

553897391 is a deficient number, since it is larger than the sum of its proper divisors (1).

553897391 is an equidigital number, since it uses as much as digits as its factorization.

553897391 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1020600, while the sum is 50.

The square root of 553897391 is about 23535.0247716037. The cubic root of 553897391 is about 821.2519992970.

The spelling of 553897391 in words is "five hundred fifty-three million, eight hundred ninety-seven thousand, three hundred ninety-one".