53558816 has 12 divisors (see below), whose sum is σ = 105443982. Its totient is φ = 26779392.

The previous prime is 53558807. The next prime is 53558819. The reversal of 53558816 is 61885535.

It can be written as a sum of positive squares in only one way, i.e., 52128400 + 1430416 = 7220^2 + 1196^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53558819) 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, 836825 + ... + 836888.

Almost surely, 2^53558816 is an apocalyptic number.

It is an amenable number.

53558816 is a deficient number, since it is larger than the sum of its proper divisors (51885166).

53558816 is a wasteful number, since it uses less digits than its factorization.

53558816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1673723 (or 1673715 counting only the distinct ones).

The product of its digits is 144000, while the sum is 41.

The square root of 53558816 is about 7318.3888937388. The cubic root of 53558816 is about 376.9441340151.

The spelling of 53558816 in words is "fifty-three million, five hundred fifty-eight thousand, eight hundred sixteen".