65251253 has 16 divisors (see below), whose sum is σ = 73789056. Its totient is φ = 57361920.

The previous prime is 65251243. The next prime is 65251261. The reversal of 65251253 is 35215256.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 65251253 - 2⁴ = 65251237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65251223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14873 + ... + 18753.

It is an arithmetic number, because the mean of its divisors is an integer number (4611816).

Almost surely, 2^65251253 is an apocalyptic number.

It is an amenable number.

65251253 is a deficient number, since it is larger than the sum of its proper divisors (8537803).

65251253 is a wasteful number, since it uses less digits than its factorization.

65251253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3964.

The product of its digits is 9000, while the sum is 29.

The square root of 65251253 is about 8077.8247690823. The cubic root of 65251253 is about 402.5899710141.

The spelling of 65251253 in words is "sixty-five million, two hundred fifty-one thousand, two hundred fifty-three".