80276560 has 80 divisors (see below), whose sum is σ = 229735296. Its totient is φ = 25403904.

The previous prime is 80276557. The next prime is 80276563. The reversal of 80276560 is 6567208.

It is an interprime number because it is at equal distance from previous prime (80276557) and next prime (80276563).

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80276563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1767 + ... + 12793.

Almost surely, 2^80276560 is an apocalyptic number.

80276560 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80276560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114867648).

80276560 is an abundant number, since it is smaller than the sum of its proper divisors (149458736).

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

80276560 is a wasteful number, since it uses less digits than its factorization.

80276560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11060 (or 11054 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 80276560 is about 8959.7187455857. The cubic root of 80276560 is about 431.3828923215.

The spelling of 80276560 in words is "eighty million, two hundred seventy-six thousand, five hundred sixty".