80558621 has 16 divisors (see below), whose sum is σ = 94899840. Its totient is φ = 67417920.

The previous prime is 80558609. The next prime is 80558663. The reversal of 80558621 is 12685508.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 80558621 - 2⁶ = 80558557 is a prime.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80558671) 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, 87200 + ... + 88118.

It is an arithmetic number, because the mean of its divisors is an integer number (5931240).

Almost surely, 2^80558621 is an apocalyptic number.

It is an amenable number.

80558621 is a deficient number, since it is larger than the sum of its proper divisors (14341219).

80558621 is a wasteful number, since it uses less digits than its factorization.

80558621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1556.

The product of its (nonzero) digits is 19200, while the sum is 35.

The square root of 80558621 is about 8975.4454485557. The cubic root of 80558621 is about 431.8875396707.

The spelling of 80558621 in words is "eighty million, five hundred fifty-eight thousand, six hundred twenty-one".