65040255 has 24 divisors (see below), whose sum is σ = 128842272. Its totient is φ = 29732544.

The previous prime is 65040247. The next prime is 65040259. The reversal of 65040255 is 55204056.

65040255 is a `hidden beast` number, since 650 + 4 + 0 + 2 + 5 + 5 = 666.

It is not a de Polignac number, because 65040255 - 2³ = 65040247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65040259) 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, 102924 + ... + 103553.

It is an arithmetic number, because the mean of its divisors is an integer number (5368428).

Almost surely, 2^65040255 is an apocalyptic number.

65040255 is a deficient number, since it is larger than the sum of its proper divisors (63802017).

65040255 is a wasteful number, since it uses less digits than its factorization.

65040255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206495 (or 206492 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 65040255 is about 8064.7538710118. The cubic root of 65040255 is about 402.1555609432.

The spelling of 65040255 in words is "sixty-five million, forty thousand, two hundred fifty-five".