266045825 has 6 divisors (see below), whose sum is σ = 329896854. Its totient is φ = 212836640.

The previous prime is 266045821. The next prime is 266045839. The reversal of 266045825 is 528540662.

It can be written as a sum of positive squares in 3 ways, for example, as 6739216 + 259306609 = 2596^2 + 16103^2 .

It is not a de Polignac number, because 266045825 - 2² = 266045821 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (266045821) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5320892 + ... + 5320941.

It is an arithmetic number, because the mean of its divisors is an integer number (54982809).

Almost surely, 2^266045825 is an apocalyptic number.

266045825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

266045825 is a deficient number, since it is larger than the sum of its proper divisors (63851029).

266045825 is a wasteful number, since it uses less digits than its factorization.

266045825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10641843 (or 10641838 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 38.

The square root of 266045825 is about 16310.9112253117. The cubic root of 266045825 is about 643.1596882210.

The spelling of 266045825 in words is "two hundred sixty-six million, forty-five thousand, eight hundred twenty-five".