65633253 has 16 divisors (see below), whose sum is σ = 100179456. Its totient is φ = 37442160.

The previous prime is 65633233. The next prime is 65633257. The reversal of 65633253 is 35233656.

It is not a de Polignac number, because 65633253 - 2⁹ = 65632741 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 (65633257) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12250 + ... + 16772.

It is an arithmetic number, because the mean of its divisors is an integer number (6261216).

Almost surely, 2^65633253 is an apocalyptic number.

It is an amenable number.

65633253 is a deficient number, since it is larger than the sum of its proper divisors (34546203).

65633253 is a wasteful number, since it uses less digits than its factorization.

65633253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5224.

The product of its digits is 48600, while the sum is 33.

The square root of 65633253 is about 8101.4352432146. The cubic root of 65633253 is about 403.3740695296.

The spelling of 65633253 in words is "sixty-five million, six hundred thirty-three thousand, two hundred fifty-three".