523647633601 has 2 divisors, whose sum is σ = 523647633602. Its totient is φ = 523647633600.

The previous prime is 523647633571. The next prime is 523647633617. The reversal of 523647633601 is 106336746325.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 340121073601 + 183526560000 = 583199^2 + 428400^2 .

It is a cyclic number.

It is not a de Polignac number, because 523647633601 - 2¹⁹ = 523647109313 is a prime.

It is not a weakly prime, because it can be changed into another prime (523647633671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261823816800 + 261823816801.

It is an arithmetic number, because the mean of its divisors is an integer number (261823816801).

Almost surely, 2^523647633601 is an apocalyptic number.

It is an amenable number.

523647633601 is a deficient number, since it is larger than the sum of its proper divisors (1).

523647633601 is an equidigital number, since it uses as much as digits as its factorization.

523647633601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1632960, while the sum is 46.

The spelling of 523647633601 in words is "five hundred twenty-three billion, six hundred forty-seven million, six hundred thirty-three thousand, six hundred one".