65085251528 has 32 divisors (see below), whose sum is σ = 133138935360. Its totient is φ = 29581980480.

The previous prime is 65085251521. The next prime is 65085251579. The reversal of 65085251528 is 82515258056.

It is not an unprimeable number, because it can be changed into a prime (65085251521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1918925 + ... + 1952547.

It is an arithmetic number, because the mean of its divisors is an integer number (4160591730).

Almost surely, 2^65085251528 is an apocalyptic number.

It is an amenable number.

65085251528 is an abundant number, since it is smaller than the sum of its proper divisors (68053683832).

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

65085251528 is a wasteful number, since it uses less digits than its factorization.

65085251528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55637 (or 55633 counting only the distinct ones).

The product of its (nonzero) digits is 960000, while the sum is 47.

It can be divided in two parts, 65085 and 251528, that added together give a palindrome (316613).

The spelling of 65085251528 in words is "sixty-five billion, eighty-five million, two hundred fifty-one thousand, five hundred twenty-eight".