53187812 has 24 divisors (see below), whose sum is σ = 94667832. Its totient is φ = 26144000.

The previous prime is 53187809. The next prime is 53187829. The reversal of 53187812 is 21878135.

53187812 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 4 ways, for example, as 14945956 + 38241856 = 3866^2 + 6184^2 .

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 69512 + ... + 70272.

It is an arithmetic number, because the mean of its divisors is an integer number (3944493).

Almost surely, 2^53187812 is an apocalyptic number.

It is an amenable number.

53187812 is a deficient number, since it is larger than the sum of its proper divisors (41480020).

53187812 is a wasteful number, since it uses less digits than its factorization.

53187812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1039 (or 1037 counting only the distinct ones).

The product of its digits is 13440, while the sum is 35.

The square root of 53187812 is about 7292.9974633206. The cubic root of 53187812 is about 376.0717476634.

The spelling of 53187812 in words is "fifty-three million, one hundred eighty-seven thousand, eight hundred twelve".