553856803 has 2 divisors, whose sum is σ = 553856804. Its totient is φ = 553856802.

The previous prime is 553856749. The next prime is 553856839. The reversal of 553856803 is 308658355.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 553856803 - 2⁹ = 553856291 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 553856803.

It is not a weakly prime, because it can be changed into another prime (553856893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 276928401 + 276928402.

It is an arithmetic number, because the mean of its divisors is an integer number (276928402).

Almost surely, 2^553856803 is an apocalyptic number.

553856803 is a deficient number, since it is larger than the sum of its proper divisors (1).

553856803 is an equidigital number, since it uses as much as digits as its factorization.

553856803 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432000, while the sum is 43.

The square root of 553856803 is about 23534.1624665081. The cubic root of 553856803 is about 821.2319391494.

The spelling of 553856803 in words is "five hundred fifty-three million, eight hundred fifty-six thousand, eight hundred three".