53117347 has 2 divisors, whose sum is σ = 53117348. Its totient is φ = 53117346.

The previous prime is 53117257. The next prime is 53117371. The reversal of 53117347 is 74371135.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 53117347 - 2⁷ = 53117219 is a prime.

It is not a weakly prime, because it can be changed into another prime (53117387) 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, 26558673 + 26558674.

It is an arithmetic number, because the mean of its divisors is an integer number (26558674).

Almost surely, 2^53117347 is an apocalyptic number.

53117347 is a deficient number, since it is larger than the sum of its proper divisors (1).

53117347 is an equidigital number, since it uses as much as digits as its factorization.

53117347 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8820, while the sum is 31.

The square root of 53117347 is about 7288.1648581793. The cubic root of 53117347 is about 375.9055967730.

The spelling of 53117347 in words is "fifty-three million, one hundred seventeen thousand, three hundred forty-seven".