80453557 has 2 divisors, whose sum is σ = 80453558. Its totient is φ = 80453556.

The previous prime is 80453539. The next prime is 80453591. The reversal of 80453557 is 75535408.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63856081 + 16597476 = 7991^2 + 4074^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80453557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80453507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40226778 + 40226779.

It is an arithmetic number, because the mean of its divisors is an integer number (40226779).

Almost surely, 2^80453557 is an apocalyptic number.

It is an amenable number.

80453557 is a deficient number, since it is larger than the sum of its proper divisors (1).

80453557 is an equidigital number, since it uses as much as digits as its factorization.

80453557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84000, while the sum is 37.

The square root of 80453557 is about 8969.5906818539. The cubic root of 80453557 is about 431.6997030680.

The spelling of 80453557 in words is "eighty million, four hundred fifty-three thousand, five hundred fifty-seven".