52130261 has 2 divisors, whose sum is σ = 52130262. Its totient is φ = 52130260.

The previous prime is 52130207. The next prime is 52130291. The reversal of 52130261 is 16203125.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51480625 + 649636 = 7175^2 + 806^2 .

It is a cyclic number.

It is not a de Polignac number, because 52130261 - 2¹⁴ = 52113877 is a prime.

It is a super-2 number, since 2×52130261² = 5435128223856242, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52130201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26065130 + 26065131.

It is an arithmetic number, because the mean of its divisors is an integer number (26065131).

Almost surely, 2^52130261 is an apocalyptic number.

It is an amenable number.

52130261 is a deficient number, since it is larger than the sum of its proper divisors (1).

52130261 is an equidigital number, since it uses as much as digits as its factorization.

52130261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 52130261 is about 7220.1288769661. The cubic root of 52130261 is about 373.5625228735.

Adding to 52130261 its reverse (16203125), we get a palindrome (68333386).

The spelling of 52130261 in words is "fifty-two million, one hundred thirty thousand, two hundred sixty-one".