65248751 has 2 divisors, whose sum is σ = 65248752. Its totient is φ = 65248750.

The previous prime is 65248721. The next prime is 65248783. The reversal of 65248751 is 15784256.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 65248751 - 2²² = 61054447 is a prime.

It is a super-3 number, since 3×65248751³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65248721) 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, 32624375 + 32624376.

It is an arithmetic number, because the mean of its divisors is an integer number (32624376).

Almost surely, 2^65248751 is an apocalyptic number.

65248751 is a deficient number, since it is larger than the sum of its proper divisors (1).

65248751 is an equidigital number, since it uses as much as digits as its factorization.

65248751 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 67200, while the sum is 38.

The square root of 65248751 is about 8077.6698991727. The cubic root of 65248751 is about 402.5848252995.

The spelling of 65248751 in words is "sixty-five million, two hundred forty-eight thousand, seven hundred fifty-one".