80985504 has 48 divisors (see below), whose sum is σ = 213125472. Its totient is φ = 26926848.

The previous prime is 80985503. The next prime is 80985517. The reversal of 80985504 is 40558908.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (80985503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49402 + ... + 51014.

It is an arithmetic number, because the mean of its divisors is an integer number (4440114).

Almost surely, 2^80985504 is an apocalyptic number.

It is an amenable number.

80985504 is an abundant number, since it is smaller than the sum of its proper divisors (132139968).

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

80985504 is a wasteful number, since it uses less digits than its factorization.

80985504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2149 (or 2141 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 39.

The square root of 80985504 is about 8999.1946306322. The cubic root of 80985504 is about 432.6490586267.

The spelling of 80985504 in words is "eighty million, nine hundred eighty-five thousand, five hundred four".