65249651 has 2 divisors, whose sum is σ = 65249652. Its totient is φ = 65249650.

The previous prime is 65249599. The next prime is 65249741. The reversal of 65249651 is 15694256.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65249651 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (65249351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32624825 + 32624826.

It is an arithmetic number, because the mean of its divisors is an integer number (32624826).

Almost surely, 2^65249651 is an apocalyptic number.

65249651 is a deficient number, since it is larger than the sum of its proper divisors (1).

65249651 is an equidigital number, since it uses as much as digits as its factorization.

65249651 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 64800, while the sum is 38.

The square root of 65249651 is about 8077.7256081152. The cubic root of 65249651 is about 402.5866762911.

The spelling of 65249651 in words is "sixty-five million, two hundred forty-nine thousand, six hundred fifty-one".