53493556 has 6 divisors (see below), whose sum is σ = 93613730. Its totient is φ = 26746776.

The previous prime is 53493551. The next prime is 53493571. The reversal of 53493556 is 65539435.

It is a happy number.

53493556 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 only one way, i.e., 50637456 + 2856100 = 7116^2 + 1690^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53493551) 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 as a sum of consecutive naturals, namely, 6686691 + ... + 6686698.

Almost surely, 2^53493556 is an apocalyptic number.

It is an amenable number.

53493556 is a deficient number, since it is larger than the sum of its proper divisors (40120174).

53493556 is a wasteful number, since it uses less digits than its factorization.

53493556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13373393 (or 13373391 counting only the distinct ones).

The product of its digits is 243000, while the sum is 40.

The square root of 53493556 is about 7313.9289031272. The cubic root of 53493556 is about 376.7909729732.

The spelling of 53493556 in words is "fifty-three million, four hundred ninety-three thousand, five hundred fifty-six".