80495554 has 4 divisors (see below), whose sum is σ = 120743334. Its totient is φ = 40247776.

The previous prime is 80495551. The next prime is 80495557. The reversal of 80495554 is 45559408.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (80495551) and next prime (80495557).

It can be written as a sum of positive squares in only one way, i.e., 77352025 + 3143529 = 8795^2 + 1773^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (80495551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20123887 + ... + 20123890.

Almost surely, 2^80495554 is an apocalyptic number.

80495554 is a deficient number, since it is larger than the sum of its proper divisors (40247780).

80495554 is a wasteful number, since it uses less digits than its factorization.

80495554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40247779.

The product of its (nonzero) digits is 144000, while the sum is 40.

The square root of 80495554 is about 8971.9314531488. The cubic root of 80495554 is about 431.7748061849.

The spelling of 80495554 in words is "eighty million, four hundred ninety-five thousand, five hundred fifty-four".