55616303 has 2 divisors, whose sum is σ = 55616304. Its totient is φ = 55616302.

The previous prime is 55616279. The next prime is 55616317. The reversal of 55616303 is 30361655.

55616303 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 55616303 - 2¹⁶ = 55550767 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55616003) 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, 27808151 + 27808152.

It is an arithmetic number, because the mean of its divisors is an integer number (27808152).

Almost surely, 2^55616303 is an apocalyptic number.

55616303 is a deficient number, since it is larger than the sum of its proper divisors (1).

55616303 is an equidigital number, since it uses as much as digits as its factorization.

55616303 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8100, while the sum is 29.

The square root of 55616303 is about 7457.6338740917. The cubic root of 55616303 is about 381.7104404535.

Adding to 55616303 its reverse (30361655), we get a palindrome (85977958).

The spelling of 55616303 in words is "fifty-five million, six hundred sixteen thousand, three hundred three".