266562245 has 8 divisors (see below), whose sum is σ = 328520184. Its totient is φ = 207486144.

The previous prime is 266562223. The next prime is 266562259. The reversal of 266562245 is 542265662.

It can be written as a sum of positive squares in 4 ways, for example, as 54626881 + 211935364 = 7391^2 + 14558^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-266562245 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 266562199 and 266562208.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 720254 + ... + 720623.

It is an arithmetic number, because the mean of its divisors is an integer number (41065023).

Almost surely, 2^266562245 is an apocalyptic number.

It is an amenable number.

266562245 is a deficient number, since it is larger than the sum of its proper divisors (61957939).

266562245 is a wasteful number, since it uses less digits than its factorization.

266562245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1440919.

The product of its digits is 172800, while the sum is 38.

The square root of 266562245 is about 16326.7340579799. The cubic root of 266562245 is about 643.5755637596.

The spelling of 266562245 in words is "two hundred sixty-six million, five hundred sixty-two thousand, two hundred forty-five".