53277647 has 2 divisors, whose sum is σ = 53277648. Its totient is φ = 53277646.

The previous prime is 53277613. The next prime is 53277671. The reversal of 53277647 is 74677235.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 53277647 - 2²⁰ = 52229071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53277947) 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 as a sum of consecutive naturals, namely, 26638823 + 26638824.

It is an arithmetic number, because the mean of its divisors is an integer number (26638824).

Almost surely, 2^53277647 is an apocalyptic number.

53277647 is a deficient number, since it is larger than the sum of its proper divisors (1).

53277647 is an equidigital number, since it uses as much as digits as its factorization.

53277647 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 246960, while the sum is 41.

The square root of 53277647 is about 7299.1538550711. The cubic root of 53277647 is about 376.2833588153.

The spelling of 53277647 in words is "fifty-three million, two hundred seventy-seven thousand, six hundred forty-seven".