53135399 has 2 divisors, whose sum is σ = 53135400. Its totient is φ = 53135398.

The previous prime is 53135371. The next prime is 53135413. The reversal of 53135399 is 99353135.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53135399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53138399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26567699 + 26567700.

It is an arithmetic number, because the mean of its divisors is an integer number (26567700).

Almost surely, 2^53135399 is an apocalyptic number.

53135399 is a deficient number, since it is larger than the sum of its proper divisors (1).

53135399 is an equidigital number, since it uses as much as digits as its factorization.

53135399 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54675, while the sum is 38.

The square root of 53135399 is about 7289.4031991652. The cubic root of 53135399 is about 375.9481759531.

The spelling of 53135399 in words is "fifty-three million, one hundred thirty-five thousand, three hundred ninety-nine".