53118647 has 2 divisors, whose sum is σ = 53118648. Its totient is φ = 53118646.

The previous prime is 53118607. The next prime is 53118677. The reversal of 53118647 is 74681135.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 53118647 - 2⁸ = 53118391 is a prime.

It is a super-2 number, since 2×53118647² = 5643181318221218, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53118607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26559323 + 26559324.

It is an arithmetic number, because the mean of its divisors is an integer number (26559324).

Almost surely, 2^53118647 is an apocalyptic number.

53118647 is a deficient number, since it is larger than the sum of its proper divisors (1).

53118647 is an equidigital number, since it uses as much as digits as its factorization.

53118647 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20160, while the sum is 35.

The square root of 53118647 is about 7288.2540433220. The cubic root of 53118647 is about 375.9086634001.

The spelling of 53118647 in words is "fifty-three million, one hundred eighteen thousand, six hundred forty-seven".