266925749 has 2 divisors, whose sum is σ = 266925750. Its totient is φ = 266925748.

The previous prime is 266925739. The next prime is 266925793. The reversal of 266925749 is 947529662.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 256800625 + 10125124 = 16025^2 + 3182^2 .

It is a cyclic number.

It is not a de Polignac number, because 266925749 - 2¹⁶ = 266860213 is a prime.

It is a super-2 number, since 2×266925749² = 142498710958422002, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 266925697 and 266925706.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (266925709) 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, 133462874 + 133462875.

It is an arithmetic number, because the mean of its divisors is an integer number (133462875).

Almost surely, 2^266925749 is an apocalyptic number.

It is an amenable number.

266925749 is a deficient number, since it is larger than the sum of its proper divisors (1).

266925749 is an equidigital number, since it uses as much as digits as its factorization.

266925749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1632960, while the sum is 50.

The square root of 266925749 is about 16337.8624366837. The cubic root of 266925749 is about 643.8679733015.

The spelling of 266925749 in words is "two hundred sixty-six million, nine hundred twenty-five thousand, seven hundred forty-nine".