53047387 has 2 divisors, whose sum is σ = 53047388. Its totient is φ = 53047386.

The previous prime is 53047333. The next prime is 53047391. The reversal of 53047387 is 78374035.

53047387 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53047387 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (53042387) 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, 26523693 + 26523694.

It is an arithmetic number, because the mean of its divisors is an integer number (26523694).

Almost surely, 2^53047387 is an apocalyptic number.

53047387 is a deficient number, since it is larger than the sum of its proper divisors (1).

53047387 is an equidigital number, since it uses as much as digits as its factorization.

53047387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 70560, while the sum is 37.

The square root of 53047387 is about 7283.3637146582. The cubic root of 53047387 is about 375.7404912020.

The spelling of 53047387 in words is "fifty-three million, forty-seven thousand, three hundred eighty-seven".