553453391 has 2 divisors, whose sum is σ = 553453392. Its totient is φ = 553453390.

The previous prime is 553453357. The next prime is 553453403. The reversal of 553453391 is 193354355.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 553453391 - 2¹⁴ = 553437007 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (553453331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 276726695 + 276726696.

It is an arithmetic number, because the mean of its divisors is an integer number (276726696).

Almost surely, 2^553453391 is an apocalyptic number.

553453391 is a deficient number, since it is larger than the sum of its proper divisors (1).

553453391 is an equidigital number, since it uses as much as digits as its factorization.

553453391 is an evil number, because the sum of its binary digits is even.

The product of its digits is 121500, while the sum is 38.

The square root of 553453391 is about 23525.5901307491. The cubic root of 553453391 is about 821.0325041542.

The spelling of 553453391 in words is "five hundred fifty-three million, four hundred fifty-three thousand, three hundred ninety-one".