52647043609 has 2 divisors, whose sum is σ = 52647043610. Its totient is φ = 52647043608.

The previous prime is 52647043591. The next prime is 52647043621. The reversal of 52647043609 is 90634074625.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31036573584 + 21610470025 = 176172^2 + 147005^2 .

It is a cyclic number.

It is not a de Polignac number, because 52647043609 - 2²⁵ = 52613489177 is a prime.

It is a super-2 number, since 2×52647043609² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (52647043649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26323521804 + 26323521805.

It is an arithmetic number, because the mean of its divisors is an integer number (26323521805).

Almost surely, 2^52647043609 is an apocalyptic number.

It is an amenable number.

52647043609 is a deficient number, since it is larger than the sum of its proper divisors (1).

52647043609 is an equidigital number, since it uses as much as digits as its factorization.

52647043609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1088640, while the sum is 46.

The spelling of 52647043609 in words is "fifty-two billion, six hundred forty-seven million, forty-three thousand, six hundred nine".