80555357 has 2 divisors, whose sum is σ = 80555358. Its totient is φ = 80555356.

The previous prime is 80555339. The next prime is 80555411. The reversal of 80555357 is 75355508.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 79905721 + 649636 = 8939^2 + 806^2 .

It is a cyclic number.

It is not a de Polignac number, because 80555357 - 2²⁶ = 13446493 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 80555357.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80555557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40277678 + 40277679.

It is an arithmetic number, because the mean of its divisors is an integer number (40277679).

Almost surely, 2^80555357 is an apocalyptic number.

It is an amenable number.

80555357 is a deficient number, since it is larger than the sum of its proper divisors (1).

80555357 is an equidigital number, since it uses as much as digits as its factorization.

80555357 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 105000, while the sum is 38.

The square root of 80555357 is about 8975.2636172984. The cubic root of 80555357 is about 431.8817066514.

The spelling of 80555357 in words is "eighty million, five hundred fifty-five thousand, three hundred fifty-seven".