65755518 has 16 divisors (see below), whose sum is σ = 132088080. Its totient is φ = 21822336.

The previous prime is 65755511. The next prime is 65755519. The reversal of 65755518 is 81555756.

It is a self number, because there is not a number n which added to its sum of digits gives 65755518.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65755511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22555 + ... + 25302.

It is an arithmetic number, because the mean of its divisors is an integer number (8255505).

Almost surely, 2^65755518 is an apocalyptic number.

65755518 is an abundant number, since it is smaller than the sum of its proper divisors (66332562).

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

65755518 is a wasteful number, since it uses less digits than its factorization.

65755518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48091.

The product of its digits is 210000, while the sum is 42.

The square root of 65755518 is about 8108.9776174312. The cubic root of 65755518 is about 403.6243894799.

The spelling of 65755518 in words is "sixty-five million, seven hundred fifty-five thousand, five hundred eighteen".