65506875 has 120 divisors (see below), whose sum is σ = 136756224. Its totient is φ = 27720000.

The previous prime is 65506843. The next prime is 65506877. The reversal of 65506875 is 57860556.

It is not a de Polignac number, because 65506875 - 2⁵ = 65506843 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65506877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 2113110 + ... + 2113140.

Almost surely, 2^65506875 is an apocalyptic number.

65506875 is an abundant number, since it is smaller than the sum of its proper divisors (71249349).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65506875 is a wasteful number, since it uses less digits than its factorization.

65506875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91 (or 69 counting only the distinct ones).

The product of its (nonzero) digits is 252000, while the sum is 42.

The square root of 65506875 is about 8093.6317558930. The cubic root of 65506875 is about 403.1150018553.

The spelling of 65506875 in words is "sixty-five million, five hundred six thousand, eight hundred seventy-five".