80688554 has 48 divisors (see below), whose sum is σ = 137598912. Its totient is φ = 35392896.

The previous prime is 80688541. The next prime is 80688563. The reversal of 80688554 is 45588608.

It is a super-2 number, since 2×80688554² = 13021285493221832, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 714002 + ... + 714114.

It is an arithmetic number, because the mean of its divisors is an integer number (2866644).

Almost surely, 2^80688554 is an apocalyptic number.

80688554 is a deficient number, since it is larger than the sum of its proper divisors (56910358).

80688554 is a wasteful number, since it uses less digits than its factorization.

80688554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219 (or 200 counting only the distinct ones).

The product of its (nonzero) digits is 307200, while the sum is 44.

The square root of 80688554 is about 8982.6807802571. The cubic root of 80688554 is about 432.1196120834.

The spelling of 80688554 in words is "eighty million, six hundred eighty-eight thousand, five hundred fifty-four".