80555330 has 32 divisors (see below), whose sum is σ = 150778800. Its totient is φ = 30949632.

The previous prime is 80555311. The next prime is 80555339. The reversal of 80555330 is 3355508.

It can be written as a sum of positive squares in 8 ways, for example, as 33097009 + 47458321 = 5753^2 + 6889^2 .

It is a super-2 number, since 2×80555330² = 12978322382817800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 80555293 and 80555302.

It is not an unprimeable number, because it can be changed into a prime (80555339) 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, 65804 + ... + 67016.

Almost surely, 2^80555330 is an apocalyptic number.

80555330 is a deficient number, since it is larger than the sum of its proper divisors (70223470).

80555330 is a wasteful number, since it uses less digits than its factorization.

80555330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1478.

The product of its (nonzero) digits is 9000, while the sum is 29.

The square root of 80555330 is about 8975.2621131642. The cubic root of 80555330 is about 431.8816583996.

The spelling of 80555330 in words is "eighty million, five hundred fifty-five thousand, three hundred thirty".