65647253 has 8 divisors (see below), whose sum is σ = 75104640. Its totient is φ = 56209680.

The previous prime is 65647247. The next prime is 65647277. The reversal of 65647253 is 35274656.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 65647253 - 2¹⁸ = 65385109 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65647453) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3008 + ... + 11846.

It is an arithmetic number, because the mean of its divisors is an integer number (9388080).

Almost surely, 2^65647253 is an apocalyptic number.

It is an amenable number.

65647253 is a deficient number, since it is larger than the sum of its proper divisors (9457387).

65647253 is a wasteful number, since it uses less digits than its factorization.

65647253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9907.

The product of its digits is 151200, while the sum is 38.

The square root of 65647253 is about 8102.2992415733. The cubic root of 65647253 is about 403.4027482619.

The spelling of 65647253 in words is "sixty-five million, six hundred forty-seven thousand, two hundred fifty-three".