2012255261 has 2 divisors, whose sum is σ = 2012255262. Its totient is φ = 2012255260.

The previous prime is 2012255221. The next prime is 2012255263. The reversal of 2012255261 is 1625522102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1837751161 + 174504100 = 42869^2 + 13210^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2012255261 is a prime.

Together with 2012255263, it forms a pair of twin primes.

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 2012255261.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2012255263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1006127630 + 1006127631.

It is an arithmetic number, because the mean of its divisors is an integer number (1006127631).

Almost surely, 2^2012255261 is an apocalyptic number.

It is an amenable number.

2012255261 is a deficient number, since it is larger than the sum of its proper divisors (1).

2012255261 is an equidigital number, since it uses as much as digits as its factorization.

2012255261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 2012255261 is about 44858.1682751313. The cubic root of 2012255261 is about 1262.4892548966.

Adding to 2012255261 its reverse (1625522102), we get a palindrome (3637777363).

The spelling of 2012255261 in words is "two billion, twelve million, two hundred fifty-five thousand, two hundred sixty-one".