52724414621 has 2 divisors, whose sum is σ = 52724414622. Its totient is φ = 52724414620.

The previous prime is 52724414563. The next prime is 52724414651. The reversal of 52724414621 is 12641442725.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32539108996 + 20185305625 = 180386^2 + 142075^2 .

It is a cyclic number.

It is not a de Polignac number, because 52724414621 - 2²² = 52720220317 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52724414651) 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, 26362207310 + 26362207311.

It is an arithmetic number, because the mean of its divisors is an integer number (26362207311).

Almost surely, 2^52724414621 is an apocalyptic number.

It is an amenable number.

52724414621 is a deficient number, since it is larger than the sum of its proper divisors (1).

52724414621 is an equidigital number, since it uses as much as digits as its factorization.

52724414621 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 107520, while the sum is 38.

The spelling of 52724414621 in words is "fifty-two billion, seven hundred twenty-four million, four hundred fourteen thousand, six hundred twenty-one".