65263931 has 2 divisors, whose sum is σ = 65263932. Its totient is φ = 65263930.

The previous prime is 65263909. The next prime is 65263951. The reversal of 65263931 is 13936256.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 65263931 - 2¹⁸ = 65001787 is a prime.

It is a super-2 number, since 2×65263931² = 8518761379145522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 65263891 and 65263900.

It is not a weakly prime, because it can be changed into another prime (65263951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32631965 + 32631966.

It is an arithmetic number, because the mean of its divisors is an integer number (32631966).

Almost surely, 2^65263931 is an apocalyptic number.

65263931 is a deficient number, since it is larger than the sum of its proper divisors (1).

65263931 is an equidigital number, since it uses as much as digits as its factorization.

65263931 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 29160, while the sum is 35.

The square root of 65263931 is about 8078.6094719327. The cubic root of 65263931 is about 402.6160430811.

The spelling of 65263931 in words is "sixty-five million, two hundred sixty-three thousand, nine hundred thirty-one".