266855125 has 8 divisors (see below), whose sum is σ = 333035352. Its totient is φ = 213484000.

The previous prime is 266855107. The next prime is 266855189. The reversal of 266855125 is 521558662.

It can be written as a sum of positive squares in 4 ways, for example, as 806404 + 266048721 = 898^2 + 16311^2 .

It is not a de Polignac number, because 266855125 - 2⁵ = 266855093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 1067296 + ... + 1067545.

It is an arithmetic number, because the mean of its divisors is an integer number (41629419).

Almost surely, 2^266855125 is an apocalyptic number.

266855125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

266855125 is a deficient number, since it is larger than the sum of its proper divisors (66180227).

266855125 is an equidigital number, since it uses as much as digits as its factorization.

266855125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2134856 (or 2134846 counting only the distinct ones).

The product of its digits is 144000, while the sum is 40.

The square root of 266855125 is about 16335.7009338443. The cubic root of 266855125 is about 643.8111827984.

The spelling of 266855125 in words is "two hundred sixty-six million, eight hundred fifty-five thousand, one hundred twenty-five".