53135471 has 2 divisors, whose sum is σ = 53135472. Its totient is φ = 53135470.

The previous prime is 53135449. The next prime is 53135473. The reversal of 53135471 is 17453135.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53135471 is a prime.

It is a super-3 number, since 3×53135471³ (a number of 24 digits) contains 333 as substring.

It is a Sophie Germain prime.

Together with 53135473, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53135473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26567735 + 26567736.

It is an arithmetic number, because the mean of its divisors is an integer number (26567736).

Almost surely, 2^53135471 is an apocalyptic number.

53135471 is a deficient number, since it is larger than the sum of its proper divisors (1).

53135471 is an equidigital number, since it uses as much as digits as its factorization.

53135471 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6300, while the sum is 29.

The square root of 53135471 is about 7289.4081378395. The cubic root of 53135471 is about 375.9483457599.

The spelling of 53135471 in words is "fifty-three million, one hundred thirty-five thousand, four hundred seventy-one".