55012720003 has 2 divisors, whose sum is σ = 55012720004. Its totient is φ = 55012720002.

The previous prime is 55012719959. The next prime is 55012720031. The reversal of 55012720003 is 30002721055.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55012720003 - 2¹³ = 55012711811 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55012720003.

It is not a weakly prime, because it can be changed into another prime (55012720033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27506360001 + 27506360002.

It is an arithmetic number, because the mean of its divisors is an integer number (27506360002).

Almost surely, 2^55012720003 is an apocalyptic number.

55012720003 is a deficient number, since it is larger than the sum of its proper divisors (1).

55012720003 is an equidigital number, since it uses as much as digits as its factorization.

55012720003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2100, while the sum is 25.

The spelling of 55012720003 in words is "fifty-five billion, twelve million, seven hundred twenty thousand, three".