65744253 has 12 divisors (see below), whose sum is σ = 100550268. Its totient is φ = 41251200.

The previous prime is 65744251. The next prime is 65744293. The reversal of 65744253 is 35244756.

It can be written as a sum of positive squares in 2 ways, for example, as 60559524 + 5184729 = 7782^2 + 2277^2 .

It is not a de Polignac number, because 65744253 - 2¹ = 65744251 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65744251) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 214698 + ... + 215003.

It is an arithmetic number, because the mean of its divisors is an integer number (8379189).

Almost surely, 2^65744253 is an apocalyptic number.

It is an amenable number.

65744253 is a deficient number, since it is larger than the sum of its proper divisors (34806015).

65744253 is a wasteful number, since it uses less digits than its factorization.

65744253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429724 (or 429721 counting only the distinct ones).

The product of its digits is 100800, while the sum is 36.

The square root of 65744253 is about 8108.2829871681. The cubic root of 65744253 is about 403.6013390017.

The spelling of 65744253 in words is "sixty-five million, seven hundred forty-four thousand, two hundred fifty-three".