52117511 has 2 divisors, whose sum is σ = 52117512. Its totient is φ = 52117510.

The previous prime is 52117489. The next prime is 52117523. The reversal of 52117511 is 11571125.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 52117511 - 2¹⁸ = 51855367 is a prime.

It is a Sophie Germain prime.

It is equal to p_3120458 and since 52117511 and 3120458 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52117561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26058755 + 26058756.

It is an arithmetic number, because the mean of its divisors is an integer number (26058756).

Almost surely, 2^52117511 is an apocalyptic number.

52117511 is a deficient number, since it is larger than the sum of its proper divisors (1).

52117511 is an equidigital number, since it uses as much as digits as its factorization.

52117511 is an evil number, because the sum of its binary digits is even.

The product of its digits is 350, while the sum is 23.

The square root of 52117511 is about 7219.2458747434. The cubic root of 52117511 is about 373.5320651289.

Adding to 52117511 its reverse (11571125), we get a palindrome (63688636).

The spelling of 52117511 in words is "fifty-two million, one hundred seventeen thousand, five hundred eleven".