80531885 has 8 divisors (see below), whose sum is σ = 110443776. Its totient is φ = 55221840.

The previous prime is 80531881. The next prime is 80531887. The reversal of 80531885 is 58813508.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 80531885 - 2² = 80531881 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80531881) 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, 1150421 + ... + 1150490.

It is an arithmetic number, because the mean of its divisors is an integer number (13805472).

Almost surely, 2^80531885 is an apocalyptic number.

It is an amenable number.

80531885 is a deficient number, since it is larger than the sum of its proper divisors (29911891).

80531885 is a wasteful number, since it uses less digits than its factorization.

80531885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2300923.

The product of its (nonzero) digits is 38400, while the sum is 38.

The square root of 80531885 is about 8973.9559281289. The cubic root of 80531885 is about 431.8397557391.

The spelling of 80531885 in words is "eighty million, five hundred thirty-one thousand, eight hundred eighty-five".