52116217 has 2 divisors, whose sum is σ = 52116218. Its totient is φ = 52116216.

The previous prime is 52116193. The next prime is 52116241. The reversal of 52116217 is 71261125.

It is a balanced prime because it is at equal distance from previous prime (52116193) and next prime (52116241).

It can be written as a sum of positive squares in only one way, i.e., 51108201 + 1008016 = 7149^2 + 1004^2 .

It is a cyclic number.

It is not a de Polignac number, because 52116217 - 2¹⁹ = 51591929 is a prime.

It is a super-2 number, since 2×52116217² = 5432200148782178, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 52116191 and 52116200.

It is not a weakly prime, because it can be changed into another prime (52116247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26058108 + 26058109.

It is an arithmetic number, because the mean of its divisors is an integer number (26058109).

Almost surely, 2^52116217 is an apocalyptic number.

It is an amenable number.

52116217 is a deficient number, since it is larger than the sum of its proper divisors (1).

52116217 is an equidigital number, since it uses as much as digits as its factorization.

52116217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 840, while the sum is 25.

The square root of 52116217 is about 7219.1562526378. The cubic root of 52116217 is about 373.5289736888.

The spelling of 52116217 in words is "fifty-two million, one hundred sixteen thousand, two hundred seventeen".