52772043641 has 2 divisors, whose sum is σ = 52772043642. Its totient is φ = 52772043640.

The previous prime is 52772043557. The next prime is 52772043673. The reversal of 52772043641 is 14634027725.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52725803641 + 46240000 = 229621^2 + 6800^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52772043641 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (52772043941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26386021820 + 26386021821.

It is an arithmetic number, because the mean of its divisors is an integer number (26386021821).

Almost surely, 2^52772043641 is an apocalyptic number.

It is an amenable number.

52772043641 is a deficient number, since it is larger than the sum of its proper divisors (1).

52772043641 is an equidigital number, since it uses as much as digits as its factorization.

52772043641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 282240, while the sum is 41.

The spelling of 52772043641 in words is "fifty-two billion, seven hundred seventy-two million, forty-three thousand, six hundred forty-one".