7256266 has 4 divisors (see below), whose sum is σ = 10884402. Its totient is φ = 3628132.

The previous prime is 7256261. The next prime is 7256287. The reversal of 7256266 is 6626527.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6626527 = 1409 ⋅4703.

It can be written as a sum of positive squares in only one way, i.e., 3940225 + 3316041 = 1985^2 + 1821^2 .

It is a d-powerful number, because it can be written as 7⁸ + 2¹² + 5⁸ + 6³ + 2²⁰ + 6⁴ + 6⁶ .

It is not an unprimeable number, because it can be changed into a prime (7256261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1814065 + ... + 1814068.

Almost surely, 2^7256266 is an apocalyptic number.

7256266 is a deficient number, since it is larger than the sum of its proper divisors (3628136).

7256266 is a wasteful number, since it uses less digits than its factorization.

7256266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3628135.

The product of its digits is 30240, while the sum is 34.

The square root of 7256266 is about 2693.7457192541. The cubic root of 7256266 is about 193.5995743963.

The spelling of 7256266 in words is "seven million, two hundred fifty-six thousand, two hundred sixty-six".