65238255 has 24 divisors (see below), whose sum is σ = 116981280. Its totient is φ = 33593280.

The previous prime is 65238253. The next prime is 65238259. The reversal of 65238255 is 55283256.

It is a happy number.

65238255 is a `hidden beast` number, since 6 + 523 + 82 + 55 = 666.

It is not a de Polignac number, because 65238255 - 2¹ = 65238253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65238253) 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, 23691 + ... + 26300.

It is an arithmetic number, because the mean of its divisors is an integer number (4874220).

Almost surely, 2^65238255 is an apocalyptic number.

65238255 is a deficient number, since it is larger than the sum of its proper divisors (51743025).

65238255 is a wasteful number, since it uses less digits than its factorization.

65238255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50031 (or 50028 counting only the distinct ones).

The product of its digits is 72000, while the sum is 36.

The square root of 65238255 is about 8077.0201807350. The cubic root of 65238255 is about 402.5632373669.

The spelling of 65238255 in words is "sixty-five million, two hundred thirty-eight thousand, two hundred fifty-five".