553503803 has 2 divisors, whose sum is σ = 553503804. Its totient is φ = 553503802.

The previous prime is 553503793. The next prime is 553503823. The reversal of 553503803 is 308305355.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 553503803 - 2⁴ = 553503787 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 553503803.

It is not a weakly prime, because it can be changed into another prime (553503823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 276751901 + 276751902.

It is an arithmetic number, because the mean of its divisors is an integer number (276751902).

Almost surely, 2^553503803 is an apocalyptic number.

553503803 is a deficient number, since it is larger than the sum of its proper divisors (1).

553503803 is an equidigital number, since it uses as much as digits as its factorization.

553503803 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27000, while the sum is 32.

The square root of 553503803 is about 23526.6615353730. The cubic root of 553503803 is about 821.0574316577.

The spelling of 553503803 in words is "five hundred fifty-three million, five hundred three thousand, eight hundred three".