52655746217 has 2 divisors, whose sum is σ = 52655746218. Its totient is φ = 52655746216.

The previous prime is 52655746183. The next prime is 52655746243. The reversal of 52655746217 is 71264755625.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51861408361 + 794337856 = 227731^2 + 28184^2 .

It is a cyclic number.

It is not a de Polignac number, because 52655746217 - 2¹² = 52655742121 is a prime.

It is a super-2 number, since 2×52655746217² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (52655746817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26327873108 + 26327873109.

It is an arithmetic number, because the mean of its divisors is an integer number (26327873109).

Almost surely, 2^52655746217 is an apocalyptic number.

It is an amenable number.

52655746217 is a deficient number, since it is larger than the sum of its proper divisors (1).

52655746217 is an equidigital number, since it uses as much as digits as its factorization.

52655746217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3528000, while the sum is 50.

The spelling of 52655746217 in words is "fifty-two billion, six hundred fifty-five million, seven hundred forty-six thousand, two hundred seventeen".