52220219 has 2 divisors, whose sum is σ = 52220220. Its totient is φ = 52220218.

The previous prime is 52220177. The next prime is 52220249. The reversal of 52220219 is 91202225.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52220219 is a prime.

It is a super-2 number, since 2×52220219² = 5453902544815922, which contains 22 as substring.

It is a Chen prime.

It is equal to p_3126218 and since 52220219 and 3126218 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 52220194 and 52220203.

It is not a weakly prime, because it can be changed into another prime (52220249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26110109 + 26110110.

It is an arithmetic number, because the mean of its divisors is an integer number (26110110).

Almost surely, 2^52220219 is an apocalyptic number.

52220219 is a deficient number, since it is larger than the sum of its proper divisors (1).

52220219 is an equidigital number, since it uses as much as digits as its factorization.

52220219 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 52220219 is about 7226.3558589375. The cubic root of 52220219 is about 373.7772773834. Note that the first 3 decimals are identical.

The spelling of 52220219 in words is "fifty-two million, two hundred twenty thousand, two hundred nineteen".