53505587 has 2 divisors, whose sum is σ = 53505588. Its totient is φ = 53505586.

The previous prime is 53505581. The next prime is 53505607. The reversal of 53505587 is 78550535.

53505587 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53505587 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 53505587.

It is not a weakly prime, because it can be changed into another prime (53505581) 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, 26752793 + 26752794.

It is an arithmetic number, because the mean of its divisors is an integer number (26752794).

Almost surely, 2^53505587 is an apocalyptic number.

53505587 is a deficient number, since it is larger than the sum of its proper divisors (1).

53505587 is an equidigital number, since it uses as much as digits as its factorization.

53505587 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 105000, while the sum is 38.

The square root of 53505587 is about 7314.7513286509. The cubic root of 53505587 is about 376.8192183217.

The spelling of 53505587 in words is "fifty-three million, five hundred five thousand, five hundred eighty-seven".