80518630 has 32 divisors (see below), whose sum is σ = 160138944. Its totient is φ = 28993536.

The previous prime is 80518609. The next prime is 80518631. The reversal of 80518630 is 3681508.

It is a junction number, because it is equal to n+sod(n) for n = 80518592 and 80518601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80518631) 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, 6387 + ... + 14206.

It is an arithmetic number, because the mean of its divisors is an integer number (5004342).

Almost surely, 2^80518630 is an apocalyptic number.

80518630 is a deficient number, since it is larger than the sum of its proper divisors (79620314).

80518630 is a wasteful number, since it uses less digits than its factorization.

80518630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20640.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 80518630 is about 8973.2173717123. The cubic root of 80518630 is about 431.8160618111.

The spelling of 80518630 in words is "eighty million, five hundred eighteen thousand, six hundred thirty".