65722331 has 2 divisors, whose sum is σ = 65722332. Its totient is φ = 65722330.

The previous prime is 65722301. The next prime is 65722333. The reversal of 65722331 is 13322756.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 65722331 - 2¹⁰ = 65721307 is a prime.

It is a super-2 number, since 2×65722331² = 8638849584147122, which contains 22 as substring.

Together with 65722333, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 65722294 and 65722303.

It is not a weakly prime, because it can be changed into another prime (65722333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32861165 + 32861166.

It is an arithmetic number, because the mean of its divisors is an integer number (32861166).

Almost surely, 2^65722331 is an apocalyptic number.

65722331 is a deficient number, since it is larger than the sum of its proper divisors (1).

65722331 is an equidigital number, since it uses as much as digits as its factorization.

65722331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7560, while the sum is 29.

The square root of 65722331 is about 8106.9310469499. The cubic root of 65722331 is about 403.5564745877.

The spelling of 65722331 in words is "sixty-five million, seven hundred twenty-two thousand, three hundred thirty-one".