65251673 has 2 divisors, whose sum is σ = 65251674. Its totient is φ = 65251672.

The previous prime is 65251607. The next prime is 65251679. The reversal of 65251673 is 37615256.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47375689 + 17875984 = 6883^2 + 4228^2 .

It is a cyclic number.

It is not a de Polignac number, because 65251673 - 2¹⁶ = 65186137 is a prime.

It is not a weakly prime, because it can be changed into another prime (65251679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32625836 + 32625837.

It is an arithmetic number, because the mean of its divisors is an integer number (32625837).

Almost surely, 2^65251673 is an apocalyptic number.

It is an amenable number.

65251673 is a deficient number, since it is larger than the sum of its proper divisors (1).

65251673 is an equidigital number, since it uses as much as digits as its factorization.

65251673 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 37800, while the sum is 35.

The square root of 65251673 is about 8077.8507661382. The cubic root of 65251673 is about 402.5908347903.

It can be divided in two parts, 652 and 51673, that added together give a palindrome (52325).

The spelling of 65251673 in words is "sixty-five million, two hundred fifty-one thousand, six hundred seventy-three".