52750261 has 2 divisors, whose sum is σ = 52750262. Its totient is φ = 52750260.

The previous prime is 52750259. The next prime is 52750279. The reversal of 52750261 is 16205725.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45562500 + 7187761 = 6750^2 + 2681^2 .

It is a cyclic number.

It is not a de Polignac number, because 52750261 - 2¹ = 52750259 is a prime.

Together with 52750259, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52750241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26375130 + 26375131.

It is an arithmetic number, because the mean of its divisors is an integer number (26375131).

Almost surely, 2^52750261 is an apocalyptic number.

It is an amenable number.

52750261 is a deficient number, since it is larger than the sum of its proper divisors (1).

52750261 is an equidigital number, since it uses as much as digits as its factorization.

52750261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 52750261 is about 7262.9374911257. The cubic root of 52750261 is about 375.0376519231.

Adding to 52750261 its reverse (16205725), we get a palindrome (68955986).

The spelling of 52750261 in words is "fifty-two million, seven hundred fifty thousand, two hundred sixty-one".