52216851901 has 2 divisors, whose sum is σ = 52216851902. Its totient is φ = 52216851900.

The previous prime is 52216851877. The next prime is 52216851961. The reversal of 52216851901 is 10915861225.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35006035801 + 17210816100 = 187099^2 + 131190^2 .

It is a cyclic number.

It is not a de Polignac number, because 52216851901 - 2²⁵ = 52183297469 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52216851961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26108425950 + 26108425951.

It is an arithmetic number, because the mean of its divisors is an integer number (26108425951).

Almost surely, 2^52216851901 is an apocalyptic number.

It is an amenable number.

52216851901 is a deficient number, since it is larger than the sum of its proper divisors (1).

52216851901 is an equidigital number, since it uses as much as digits as its factorization.

52216851901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43200, while the sum is 40.

The spelling of 52216851901 in words is "fifty-two billion, two hundred sixteen million, eight hundred fifty-one thousand, nine hundred one".