266125225 has 12 divisors (see below), whose sum is σ = 349407324. Its totient is φ = 200376320.

The previous prime is 266125217. The next prime is 266125241. The reversal of 266125225 is 522521662.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 13601344 + 252523881 = 3688^2 + 15891^2 .

It is not a de Polignac number, because 266125225 - 2³ = 266125217 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 312664 + ... + 313513.

It is an arithmetic number, because the mean of its divisors is an integer number (29117277).

Almost surely, 2^266125225 is an apocalyptic number.

266125225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

266125225 is a deficient number, since it is larger than the sum of its proper divisors (83282099).

266125225 is a wasteful number, since it uses less digits than its factorization.

266125225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 626204 (or 626199 counting only the distinct ones).

The product of its digits is 14400, while the sum is 31.

The square root of 266125225 is about 16313.3449972714. The cubic root of 266125225 is about 643.2236644174.

Adding to 266125225 its reverse (522521662), we get a palindrome (788646887).

The spelling of 266125225 in words is "two hundred sixty-six million, one hundred twenty-five thousand, two hundred twenty-five".