65044219 has 2 divisors, whose sum is σ = 65044220. Its totient is φ = 65044218.

The previous prime is 65044211. The next prime is 65044237. The reversal of 65044219 is 91244056.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 65044219 - 2³ = 65044211 is a prime.

It is a super-2 number, since 2×65044219² = 8461500850639922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (65044211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32522109 + 32522110.

It is an arithmetic number, because the mean of its divisors is an integer number (32522110).

Almost surely, 2^65044219 is an apocalyptic number.

65044219 is a deficient number, since it is larger than the sum of its proper divisors (1).

65044219 is an equidigital number, since it uses as much as digits as its factorization.

65044219 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 65044219 is about 8064.9996280223. Note that the first 3 decimals coincide. The cubic root of 65044219 is about 402.1637308182.

The spelling of 65044219 in words is "sixty-five million, forty-four thousand, two hundred nineteen".