52666501651 has 2 divisors, whose sum is σ = 52666501652. Its totient is φ = 52666501650.

The previous prime is 52666501649. The next prime is 52666501703. The reversal of 52666501651 is 15610566625.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 52666501651 - 2¹ = 52666501649 is a prime.

Together with 52666501649, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 52666501598 and 52666501607.

It is not a weakly prime, because it can be changed into another prime (52666571651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26333250825 + 26333250826.

It is an arithmetic number, because the mean of its divisors is an integer number (26333250826).

Almost surely, 2^52666501651 is an apocalyptic number.

52666501651 is a deficient number, since it is larger than the sum of its proper divisors (1).

52666501651 is an equidigital number, since it uses as much as digits as its factorization.

52666501651 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324000, while the sum is 43.

The spelling of 52666501651 in words is "fifty-two billion, six hundred sixty-six million, five hundred one thousand, six hundred fifty-one".