5286215261 has 2 divisors, whose sum is σ = 5286215262. Its totient is φ = 5286215260.

The previous prime is 5286215257. The next prime is 5286215269. The reversal of 5286215261 is 1625126825.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4787809636 + 498405625 = 69194^2 + 22325^2 .

It is a cyclic number.

It is not a de Polignac number, because 5286215261 - 2² = 5286215257 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5286215269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2643107630 + 2643107631.

It is an arithmetic number, because the mean of its divisors is an integer number (2643107631).

Almost surely, 2^5286215261 is an apocalyptic number.

It is an amenable number.

5286215261 is a deficient number, since it is larger than the sum of its proper divisors (1).

5286215261 is an equidigital number, since it uses as much as digits as its factorization.

5286215261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 57600, while the sum is 38.

The square root of 5286215261 is about 72706.3632772263. The cubic root of 5286215261 is about 1742.0005242926. Note that the first 3 decimals are identical.

The spelling of 5286215261 in words is "five billion, two hundred eighty-six million, two hundred fifteen thousand, two hundred sixty-one".