65457253 has 2 divisors, whose sum is σ = 65457254. Its totient is φ = 65457252.

The previous prime is 65457251. The next prime is 65457289. The reversal of 65457253 is 35275456.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44315649 + 21141604 = 6657^2 + 4598^2 .

It is a cyclic number.

It is not a de Polignac number, because 65457253 - 2¹ = 65457251 is a prime.

Together with 65457251, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65457251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32728626 + 32728627.

It is an arithmetic number, because the mean of its divisors is an integer number (32728627).

Almost surely, 2^65457253 is an apocalyptic number.

It is an amenable number.

65457253 is a deficient number, since it is larger than the sum of its proper divisors (1).

65457253 is an equidigital number, since it uses as much as digits as its factorization.

65457253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 126000, while the sum is 37.

The square root of 65457253 is about 8090.5656786161. The cubic root of 65457253 is about 403.0131884927.

The spelling of 65457253 in words is "sixty-five million, four hundred fifty-seven thousand, two hundred fifty-three".