53686291 has 2 divisors, whose sum is σ = 53686292. Its totient is φ = 53686290.

The previous prime is 53686277. The next prime is 53686351. The reversal of 53686291 is 19268635.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 53686291 - 2¹¹ = 53684243 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (53686211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26843145 + 26843146.

It is an arithmetic number, because the mean of its divisors is an integer number (26843146).

Almost surely, 2^53686291 is an apocalyptic number.

53686291 is a deficient number, since it is larger than the sum of its proper divisors (1).

53686291 is an equidigital number, since it uses as much as digits as its factorization.

53686291 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 77760, while the sum is 40.

The square root of 53686291 is about 7327.0929433166. The cubic root of 53686291 is about 377.2429511877.

The spelling of 53686291 in words is "fifty-three million, six hundred eighty-six thousand, two hundred ninety-one".