53303917 has 2 divisors, whose sum is σ = 53303918. Its totient is φ = 53303916.

The previous prime is 53303897. The next prime is 53303951. The reversal of 53303917 is 71930335.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26894596 + 26409321 = 5186^2 + 5139^2 .

It is a cyclic number.

It is not a de Polignac number, because 53303917 - 2¹¹ = 53301869 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53303317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26651958 + 26651959.

It is an arithmetic number, because the mean of its divisors is an integer number (26651959).

Almost surely, 2^53303917 is an apocalyptic number.

It is an amenable number.

53303917 is a deficient number, since it is larger than the sum of its proper divisors (1).

53303917 is an equidigital number, since it uses as much as digits as its factorization.

53303917 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8505, while the sum is 31.

The square root of 53303917 is about 7300.9531569515. The cubic root of 53303917 is about 376.3451942513.

The spelling of 53303917 in words is "fifty-three million, three hundred three thousand, nine hundred seventeen".