51722003 has 2 divisors, whose sum is σ = 51722004. Its totient is φ = 51722002.

The previous prime is 51721997. The next prime is 51722023. The reversal of 51722003 is 30022715.

51722003 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (51722023) can be obtained adding 51722003 to its sum of digits (20).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51722003 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (51722023) 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, 25861001 + 25861002.

It is an arithmetic number, because the mean of its divisors is an integer number (25861002).

Almost surely, 2^51722003 is an apocalyptic number.

51722003 is a deficient number, since it is larger than the sum of its proper divisors (1).

51722003 is an equidigital number, since it uses as much as digits as its factorization.

51722003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 420, while the sum is 20.

The square root of 51722003 is about 7191.8010956922. The cubic root of 51722003 is about 372.5847813869.

Adding to 51722003 its reverse (30022715), we get a palindrome (81744718).

The spelling of 51722003 in words is "fifty-one million, seven hundred twenty-two thousand, three".