53117611 has 2 divisors, whose sum is σ = 53117612. Its totient is φ = 53117610.

The previous prime is 53117609. The next prime is 53117621. The reversal of 53117611 is 11671135.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 53117611 - 2¹ = 53117609 is a prime.

Together with 53117609, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (53117621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26558805 + 26558806.

It is an arithmetic number, because the mean of its divisors is an integer number (26558806).

Almost surely, 2^53117611 is an apocalyptic number.

53117611 is a deficient number, since it is larger than the sum of its proper divisors (1).

53117611 is an equidigital number, since it uses as much as digits as its factorization.

53117611 is an evil number, because the sum of its binary digits is even.

The product of its digits is 630, while the sum is 25.

The square root of 53117611 is about 7288.1829697120. The cubic root of 53117611 is about 375.9062195382.

Adding to 53117611 its reverse (11671135), we get a palindrome (64788746).

The spelling of 53117611 in words is "fifty-three million, one hundred seventeen thousand, six hundred eleven".