52320311 has 2 divisors, whose sum is σ = 52320312. Its totient is φ = 52320310.

The previous prime is 52320299. The next prime is 52320347. The reversal of 52320311 is 11302325.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52320311 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 52320311.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52320361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26160155 + 26160156.

It is an arithmetic number, because the mean of its divisors is an integer number (26160156).

Almost surely, 2^52320311 is an apocalyptic number.

52320311 is a deficient number, since it is larger than the sum of its proper divisors (1).

52320311 is an equidigital number, since it uses as much as digits as its factorization.

52320311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 52320311 is about 7233.2780259022. The cubic root of 52320311 is about 374.0159348640.

Adding to 52320311 its reverse (11302325), we get a palindrome (63622636).

The spelling of 52320311 in words is "fifty-two million, three hundred twenty thousand, three hundred eleven".