2065430251 has 2 divisors, whose sum is σ = 2065430252. Its totient is φ = 2065430250.

The previous prime is 2065430231. The next prime is 2065430327. The reversal of 2065430251 is 1520345602.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2065430251 - 2⁷ = 2065430123 is a prime.

It is a super-3 number, since 3×2065430251³ (a number of 29 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (2065430231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1032715125 + 1032715126.

It is an arithmetic number, because the mean of its divisors is an integer number (1032715126).

Almost surely, 2^2065430251 is an apocalyptic number.

2065430251 is a deficient number, since it is larger than the sum of its proper divisors (1).

2065430251 is an equidigital number, since it uses as much as digits as its factorization.

2065430251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 2065430251 is about 45447.0048628070. The cubic root of 2065430251 is about 1273.5133770812.

Adding to 2065430251 its reverse (1520345602), we get a palindrome (3585775853).

It can be divided in two parts, 20654 and 30251, that added together give a palindrome (50905).

The spelling of 2065430251 in words is "two billion, sixty-five million, four hundred thirty thousand, two hundred fifty-one".