5216332903721 has 2 divisors, whose sum is σ = 5216332903722. Its totient is φ = 5216332903720.

The previous prime is 5216332903669. The next prime is 5216332903729. The reversal of 5216332903721 is 1273092336125.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4657240228096 + 559092675625 = 2158064^2 + 747725^2 .

It is a cyclic number.

It is not a de Polignac number, because 5216332903721 - 2¹⁸ = 5216332641577 is a prime.

It is not a weakly prime, because it can be changed into another prime (5216332903729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2608166451860 + 2608166451861.

It is an arithmetic number, because the mean of its divisors is an integer number (2608166451861).

Almost surely, 2^{5216332903721} is an apocalyptic number.

It is an amenable number.

5216332903721 is a deficient number, since it is larger than the sum of its proper divisors (1).

5216332903721 is an equidigital number, since it uses as much as digits as its factorization.

5216332903721 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 408240, while the sum is 44.

The spelling of 5216332903721 in words is "five trillion, two hundred sixteen billion, three hundred thirty-two million, nine hundred three thousand, seven hundred twenty-one".