65105255 has 4 divisors (see below), whose sum is σ = 78126312. Its totient is φ = 52084200.

The previous prime is 65105207. The next prime is 65105279. The reversal of 65105255 is 55250156.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 65105255 - 2¹⁶ = 65039719 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6510521 + ... + 6510530.

It is an arithmetic number, because the mean of its divisors is an integer number (19531578).

Almost surely, 2^65105255 is an apocalyptic number.

65105255 is a deficient number, since it is larger than the sum of its proper divisors (13021057).

65105255 is a wasteful number, since it uses less digits than its factorization.

65105255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13021056.

The product of its (nonzero) digits is 7500, while the sum is 29.

The square root of 65105255 is about 8068.7827458669. The cubic root of 65105255 is about 402.2894852250.

The spelling of 65105255 in words is "sixty-five million, one hundred five thousand, two hundred fifty-five".