53609767 has 2 divisors, whose sum is σ = 53609768. Its totient is φ = 53609766.

The previous prime is 53609761. The next prime is 53609779. The reversal of 53609767 is 76790635.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53609767 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53609761) 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, 26804883 + 26804884.

It is an arithmetic number, because the mean of its divisors is an integer number (26804884).

Almost surely, 2^53609767 is an apocalyptic number.

53609767 is a deficient number, since it is larger than the sum of its proper divisors (1).

53609767 is an equidigital number, since it uses as much as digits as its factorization.

53609767 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 238140, while the sum is 43.

The square root of 53609767 is about 7321.8690919737. The cubic root of 53609767 is about 377.0636262858.

The spelling of 53609767 in words is "fifty-three million, six hundred nine thousand, seven hundred sixty-seven".