52100052661 has 2 divisors, whose sum is σ = 52100052662. Its totient is φ = 52100052660.

The previous prime is 52100052607. The next prime is 52100052671. The reversal of 52100052661 is 16625000125.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51929750161 + 170302500 = 227881^2 + 13050^2 .

It is a cyclic number.

It is not a de Polignac number, because 52100052661 - 2¹⁹ = 52099528373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52100052671) 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, 26050026330 + 26050026331.

It is an arithmetic number, because the mean of its divisors is an integer number (26050026331).

Almost surely, 2^52100052661 is an apocalyptic number.

It is an amenable number.

52100052661 is a deficient number, since it is larger than the sum of its proper divisors (1).

52100052661 is an equidigital number, since it uses as much as digits as its factorization.

52100052661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3600, while the sum is 28.

Adding to 52100052661 its reverse (16625000125), we get a palindrome (68725052786).

The spelling of 52100052661 in words is "fifty-two billion, one hundred million, fifty-two thousand, six hundred sixty-one".