52216669 has 2 divisors, whose sum is σ = 52216670. Its totient is φ = 52216668.

The previous prime is 52216667. The next prime is 52216687. The reversal of 52216669 is 96661225.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50951044 + 1265625 = 7138^2 + 1125^2 .

It is a cyclic number.

It is not a de Polignac number, because 52216669 - 2¹ = 52216667 is a prime.

It is a super-2 number, since 2×52216669² = 5453161042911122, which contains 22 as substring.

Together with 52216667, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52216667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26108334 + 26108335.

It is an arithmetic number, because the mean of its divisors is an integer number (26108335).

Almost surely, 2^52216669 is an apocalyptic number.

It is an amenable number.

52216669 is a deficient number, since it is larger than the sum of its proper divisors (1).

52216669 is an equidigital number, since it uses as much as digits as its factorization.

52216669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 38880, while the sum is 37.

The square root of 52216669 is about 7226.1102261175. The cubic root of 52216669 is about 373.7688072325.

The spelling of 52216669 in words is "fifty-two million, two hundred sixteen thousand, six hundred sixty-nine".