65321253 has 24 divisors (see below), whose sum is σ = 98560800. Its totient is φ = 41635104.

The previous prime is 65321251. The next prime is 65321273. The reversal of 65321253 is 35212356.

65321253 is a `hidden beast` number, since 6 + 532 + 125 + 3 = 666.

It is not a de Polignac number, because 65321253 - 2¹ = 65321251 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65321251) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26758 + ... + 29096.

It is an arithmetic number, because the mean of its divisors is an integer number (4106700).

Almost surely, 2^65321253 is an apocalyptic number.

It is an amenable number.

65321253 is a deficient number, since it is larger than the sum of its proper divisors (33239547).

65321253 is a wasteful number, since it uses less digits than its factorization.

65321253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2481 (or 2478 counting only the distinct ones).

The product of its digits is 5400, while the sum is 27.

The square root of 65321253 is about 8082.1564572829. The cubic root of 65321253 is about 402.7338825625.

The spelling of 65321253 in words is "sixty-five million, three hundred twenty-one thousand, two hundred fifty-three".