65525256771 has 16 divisors (see below), whose sum is σ = 94358713344. Its totient is φ = 40207021344.

The previous prime is 65525256763. The next prime is 65525256781. The reversal of 65525256771 is 17765252556.

It is not a de Polignac number, because 65525256771 - 2³ = 65525256763 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65525256751) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2407411 + ... + 2434476.

It is an arithmetic number, because the mean of its divisors is an integer number (5897419584).

Almost surely, 2^65525256771 is an apocalyptic number.

65525256771 is a deficient number, since it is larger than the sum of its proper divisors (28833456573).

65525256771 is a wasteful number, since it uses less digits than its factorization.

65525256771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4842250.

The product of its digits is 4410000, while the sum is 51.

The spelling of 65525256771 in words is "sixty-five billion, five hundred twenty-five million, two hundred fifty-six thousand, seven hundred seventy-one".