65193055 has 4 divisors (see below), whose sum is σ = 78231672. Its totient is φ = 52154440.

The previous prime is 65193043. The next prime is 65193059. The reversal of 65193055 is 55039156.

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

It is a de Polignac number, because none of the positive numbers 2^k-65193055 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 65193055.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65193059) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6519301 + ... + 6519310.

It is an arithmetic number, because the mean of its divisors is an integer number (19557918).

Almost surely, 2^65193055 is an apocalyptic number.

65193055 is a deficient number, since it is larger than the sum of its proper divisors (13038617).

65193055 is a wasteful number, since it uses less digits than its factorization.

65193055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13038616.

The product of its (nonzero) digits is 20250, while the sum is 34.

The square root of 65193055 is about 8074.2216343125. The cubic root of 65193055 is about 402.4702445758.

The spelling of 65193055 in words is "sixty-five million, one hundred ninety-three thousand, fifty-five".