80765256 has 128 divisors (see below), whose sum is σ = 240589440. Its totient is φ = 22272000.

The previous prime is 80765239. The next prime is 80765303. The reversal of 80765256 is 65256708.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 346516 + ... + 346748.

It is an arithmetic number, because the mean of its divisors is an integer number (1879605).

Almost surely, 2^80765256 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80765256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120294720).

80765256 is an abundant number, since it is smaller than the sum of its proper divisors (159824184).

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

80765256 is a wasteful number, since it uses less digits than its factorization.

80765256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367 (or 363 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 39.

The square root of 80765256 is about 8986.9492042628. The cubic root of 80765256 is about 432.2564920583.

It can be divided in two parts, 807652 and 56, that added together give a palindrome (807708).

The spelling of 80765256 in words is "eighty million, seven hundred sixty-five thousand, two hundred fifty-six".