265250150261 has 2 divisors, whose sum is σ = 265250150262. Its totient is φ = 265250150260.

The previous prime is 265250150233. The next prime is 265250150317. The reversal of 265250150261 is 162051052562.

265250150261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 262605002500 + 2645147761 = 512450^2 + 51431^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-265250150261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (265250150461) 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, 132625075130 + 132625075131.

It is an arithmetic number, because the mean of its divisors is an integer number (132625075131).

Almost surely, 2^265250150261 is an apocalyptic number.

It is an amenable number.

265250150261 is a deficient number, since it is larger than the sum of its proper divisors (1).

265250150261 is an equidigital number, since it uses as much as digits as its factorization.

265250150261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36000, while the sum is 35.

The spelling of 265250150261 in words is "two hundred sixty-five billion, two hundred fifty million, one hundred fifty thousand, two hundred sixty-one".