266246225 has 24 divisors (see below), whose sum is σ = 378160320. Its totient is φ = 182157120.

The previous prime is 266246219. The next prime is 266246249. The reversal of 266246225 is 522642662.

It is not a de Polignac number, because 266246225 - 2⁶ = 266246161 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 90071 + ... + 92979.

It is an arithmetic number, because the mean of its divisors is an integer number (15756680).

Almost surely, 2^266246225 is an apocalyptic number.

266246225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

266246225 is a deficient number, since it is larger than the sum of its proper divisors (111914095).

266246225 is a wasteful number, since it uses less digits than its factorization.

266246225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3449 (or 3444 counting only the distinct ones).

The product of its digits is 69120, while the sum is 35.

The square root of 266246225 is about 16317.0531959665. The cubic root of 266246225 is about 643.3211351609.

Adding to 266246225 its reverse (522642662), we get a palindrome (788888887).

The spelling of 266246225 in words is "two hundred sixty-six million, two hundred forty-six thousand, two hundred twenty-five".