53016389 has 2 divisors, whose sum is σ = 53016390. Its totient is φ = 53016388.

The previous prime is 53016373. The next prime is 53016413. The reversal of 53016389 is 98361035.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46036225 + 6980164 = 6785^2 + 2642^2 .

It is a cyclic number.

It is not a de Polignac number, because 53016389 - 2⁴ = 53016373 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53016349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26508194 + 26508195.

It is an arithmetic number, because the mean of its divisors is an integer number (26508195).

Almost surely, 2^53016389 is an apocalyptic number.

It is an amenable number.

53016389 is a deficient number, since it is larger than the sum of its proper divisors (1).

53016389 is an equidigital number, since it uses as much as digits as its factorization.

53016389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 53016389 is about 7281.2354034188. The cubic root of 53016389 is about 375.6672895245.

The spelling of 53016389 in words is "fifty-three million, sixteen thousand, three hundred eighty-nine".