52400311 has 2 divisors, whose sum is σ = 52400312. Its totient is φ = 52400310.

The previous prime is 52400291. The next prime is 52400321. The reversal of 52400311 is 11300425.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52400311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52400321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26200155 + 26200156.

It is an arithmetic number, because the mean of its divisors is an integer number (26200156).

Almost surely, 2^52400311 is an apocalyptic number.

52400311 is a deficient number, since it is larger than the sum of its proper divisors (1).

52400311 is an equidigital number, since it uses as much as digits as its factorization.

52400311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 52400311 is about 7238.8059098169. The cubic root of 52400311 is about 374.2064665896.

Adding to 52400311 its reverse (11300425), we get a palindrome (63700736).

The spelling of 52400311 in words is "fifty-two million, four hundred thousand, three hundred eleven".