80055221 has 2 divisors, whose sum is σ = 80055222. Its totient is φ = 80055220.

The previous prime is 80055211. The next prime is 80055229. The reversal of 80055221 is 12255008.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 66994225 + 13060996 = 8185^2 + 3614^2 .

It is a cyclic number.

It is not a de Polignac number, because 80055221 - 2²⁶ = 12946357 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80055229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40027610 + 40027611.

It is an arithmetic number, because the mean of its divisors is an integer number (40027611).

Almost surely, 2^80055221 is an apocalyptic number.

It is an amenable number.

80055221 is a deficient number, since it is larger than the sum of its proper divisors (1).

80055221 is an equidigital number, since it uses as much as digits as its factorization.

80055221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 80055221 is about 8947.3583252265. The cubic root of 80055221 is about 430.9860569022.

The spelling of 80055221 in words is "eighty million, fifty-five thousand, two hundred twenty-one".