80506553 has 8 divisors (see below), whose sum is σ = 85118400. Its totient is φ = 75932208.

The previous prime is 80506549. The next prime is 80506571. The reversal of 80506553 is 35560508.

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

It is not a de Polignac number, because 80506553 - 2² = 80506549 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80506583) 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, 4901 + ... + 13602.

It is an arithmetic number, because the mean of its divisors is an integer number (10639800).

Almost surely, 2^80506553 is an apocalyptic number.

It is an amenable number.

80506553 is a deficient number, since it is larger than the sum of its proper divisors (4611847).

80506553 is a wasteful number, since it uses less digits than its factorization.

80506553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18751.

The product of its (nonzero) digits is 18000, while the sum is 32.

The square root of 80506553 is about 8972.5443994443. The cubic root of 80506553 is about 431.7944713488.

The spelling of 80506553 in words is "eighty million, five hundred six thousand, five hundred fifty-three".