80553321 has 6 divisors (see below), whose sum is σ = 116354810. Its totient is φ = 53702208.

The previous prime is 80553307. The next prime is 80553371. The reversal of 80553321 is 12335508.

80553321 is a `hidden beast` number, since 80 + 553 + 32 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 46785600 + 33767721 = 6840^2 + 5811^2 .

It is not a de Polignac number, because 80553321 - 2¹⁸ = 80291177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80553301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4475176 + ... + 4475193.

Almost surely, 2^80553321 is an apocalyptic number.

It is an amenable number.

80553321 is a deficient number, since it is larger than the sum of its proper divisors (35801489).

80553321 is a wasteful number, since it uses less digits than its factorization.

80553321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8950375 (or 8950372 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 80553321 is about 8975.1501937294. The cubic root of 80553321 is about 431.8780680828.

Adding to 80553321 its reverse (12335508), we get a palindrome (92888829).

The spelling of 80553321 in words is "eighty million, five hundred fifty-three thousand, three hundred twenty-one".