53404066 has 8 divisors (see below), whose sum is σ = 80450604. Its totient is φ = 26587200.

The previous prime is 53404049. The next prime is 53404069. The reversal of 53404066 is 66040435.

53404066 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 52345225 + 1058841 = 7235^2 + 1029^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (53404069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56835 + ... + 57766.

Almost surely, 2^53404066 is an apocalyptic number.

53404066 is a deficient number, since it is larger than the sum of its proper divisors (27046538).

53404066 is a wasteful number, since it uses less digits than its factorization.

53404066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114836.

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 53404066 is about 7307.8085634477. The cubic root of 53404066 is about 376.5807430118.

The spelling of 53404066 in words is "fifty-three million, four hundred four thousand, sixty-six".