53999017 has 2 divisors, whose sum is σ = 53999018. Its totient is φ = 53999016.

The previous prime is 53998999. The next prime is 53999039. The reversal of 53999017 is 71099935.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52940176 + 1058841 = 7276^2 + 1029^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53999017 is a prime.

It is not a weakly prime, because it can be changed into another prime (53999417) 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, 26999508 + 26999509.

It is an arithmetic number, because the mean of its divisors is an integer number (26999509).

Almost surely, 2^53999017 is an apocalyptic number.

It is an amenable number.

53999017 is a deficient number, since it is larger than the sum of its proper divisors (1).

53999017 is an equidigital number, since it uses as much as digits as its factorization.

53999017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 76545, while the sum is 43.

The square root of 53999017 is about 7348.4023433669. The cubic root of 53999017 is about 377.9740214316.

The spelling of 53999017 in words is "fifty-three million, nine hundred ninety-nine thousand, seventeen".