53503603 has 2 divisors, whose sum is σ = 53503604. Its totient is φ = 53503602.

The previous prime is 53503529. The next prime is 53503633. The reversal of 53503603 is 30630535.

53503603 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 53503603 - 2¹³ = 53495411 is a prime.

It is a zygodrome in base 2.

It is not a weakly prime, because it can be changed into another prime (53503633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26751801 + 26751802.

It is an arithmetic number, because the mean of its divisors is an integer number (26751802).

Almost surely, 2^53503603 is an apocalyptic number.

53503603 is a deficient number, since it is larger than the sum of its proper divisors (1).

53503603 is an equidigital number, since it uses as much as digits as its factorization.

53503603 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4050, while the sum is 25.

The square root of 53503603 is about 7314.6157110268. The cubic root of 53503603 is about 376.8145607485.

The spelling of 53503603 in words is "fifty-three million, five hundred three thousand, six hundred three".