52198217 has 2 divisors, whose sum is σ = 52198218. Its totient is φ = 52198216.

The previous prime is 52198193. The next prime is 52198219. The reversal of 52198217 is 71289125.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45751696 + 6446521 = 6764^2 + 2539^2 .

It is a cyclic number.

It is not a de Polignac number, because 52198217 - 2²² = 48003913 is a prime.

Together with 52198219, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (52198219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26099108 + 26099109.

It is an arithmetic number, because the mean of its divisors is an integer number (26099109).

Almost surely, 2^52198217 is an apocalyptic number.

It is an amenable number.

52198217 is a deficient number, since it is larger than the sum of its proper divisors (1).

52198217 is an equidigital number, since it uses as much as digits as its factorization.

52198217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10080, while the sum is 35.

The square root of 52198217 is about 7224.8333544795. The cubic root of 52198217 is about 373.7247753508.

The spelling of 52198217 in words is "fifty-two million, one hundred ninety-eight thousand, two hundred seventeen".