266006425 has 6 divisors (see below), whose sum is σ = 329847998. Its totient is φ = 212805120.

The previous prime is 266006359. The next prime is 266006467. The reversal of 266006425 is 524600662.

It can be written as a sum of positive squares in 3 ways, for example, as 22240656 + 243765769 = 4716^2 + 15613^2 .

It is not a de Polignac number, because 266006425 - 2⁷ = 266006297 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5320104 + ... + 5320153.

Almost surely, 2^266006425 is an apocalyptic number.

266006425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

266006425 is a deficient number, since it is larger than the sum of its proper divisors (63841573).

266006425 is a wasteful number, since it uses less digits than its factorization.

266006425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10640267 (or 10640262 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 266006425 is about 16309.7034001235. The cubic root of 266006425 is about 643.1279371210.

The spelling of 266006425 in words is "two hundred sixty-six million, six thousand, four hundred twenty-five".