53243886 has 16 divisors (see below), whose sum is σ = 106689024. Its totient is φ = 17714424.

The previous prime is 53243857. The next prime is 53243887. The reversal of 53243886 is 68834235.

It is a super-2 number, since 2×53243886² = 5669822792761992, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53243887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4830 + ... + 11393.

It is an arithmetic number, because the mean of its divisors is an integer number (6668064).

Almost surely, 2^53243886 is an apocalyptic number.

53243886 is an abundant number, since it is smaller than the sum of its proper divisors (53445138).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53243886 is a wasteful number, since it uses less digits than its factorization.

53243886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16775.

The product of its digits is 138240, while the sum is 39.

The square root of 53243886 is about 7296.8408232604. The cubic root of 53243886 is about 376.2038608927.

The spelling of 53243886 in words is "fifty-three million, two hundred forty-three thousand, eight hundred eighty-six".