65396507255 has 4 divisors (see below), whose sum is σ = 78475808712. Its totient is φ = 52317205800.

The previous prime is 65396507251. The next prime is 65396507263. The reversal of 65396507255 is 55270569356.

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

It is not a de Polignac number, because 65396507255 - 2² = 65396507251 is a prime.

It is a super-2 number, since 2×65396507255² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 65396507197 and 65396507206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65396507251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6539650721 + ... + 6539650730.

It is an arithmetic number, because the mean of its divisors is an integer number (19618952178).

Almost surely, 2^65396507255 is an apocalyptic number.

65396507255 is a deficient number, since it is larger than the sum of its proper divisors (13079301457).

65396507255 is a wasteful number, since it uses less digits than its factorization.

65396507255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13079301456.

The product of its (nonzero) digits is 8505000, while the sum is 53.

The spelling of 65396507255 in words is "sixty-five billion, three hundred ninety-six million, five hundred seven thousand, two hundred fifty-five".