53284987 has 16 divisors (see below), whose sum is σ = 67875840. Its totient is φ = 40722048.

The previous prime is 53284967. The next prime is 53284993. The reversal of 53284987 is 78948235.

53284987 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53284987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53284927) 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 15 ways as a sum of consecutive naturals, for example, 9523 + ... + 14044.

It is an arithmetic number, because the mean of its divisors is an integer number (4242240).

Almost surely, 2^53284987 is an apocalyptic number.

53284987 is a deficient number, since it is larger than the sum of its proper divisors (14590853).

53284987 is a wasteful number, since it uses less digits than its factorization.

53284987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23610.

The product of its digits is 483840, while the sum is 46.

The square root of 53284987 is about 7299.6566357603. The cubic root of 53284987 is about 376.3006380633.

The spelling of 53284987 in words is "fifty-three million, two hundred eighty-four thousand, nine hundred eighty-seven".