55306003 has 2 divisors, whose sum is σ = 55306004. Its totient is φ = 55306002.

The previous prime is 55305997. The next prime is 55306033. The reversal of 55306003 is 30060355.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55306003 - 2²¹ = 53208851 is a prime.

It is not a weakly prime, because it can be changed into another prime (55306033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27653001 + 27653002.

It is an arithmetic number, because the mean of its divisors is an integer number (27653002).

Almost surely, 2^55306003 is an apocalyptic number.

55306003 is a deficient number, since it is larger than the sum of its proper divisors (1).

55306003 is an equidigital number, since it uses as much as digits as its factorization.

55306003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1350, while the sum is 22.

The square root of 55306003 is about 7436.8005889630. The cubic root of 55306003 is about 380.9992238487. Note that the first 3 decimals are identical.

Adding to 55306003 its reverse (30060355), we get a palindrome (85366358).

The spelling of 55306003 in words is "fifty-five million, three hundred six thousand, three".