7266257 has 4 divisors (see below), whose sum is σ = 7304100. Its totient is φ = 7228416.

The previous prime is 7266253. The next prime is 7266289. The reversal of 7266257 is 7526627.

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: 7526627 = 47 ⋅160141.

It can be written as a sum of positive squares in 2 ways, for example, as 4734976 + 2531281 = 2176^2 + 1591^2 .

It is a cyclic number.

It is not a de Polignac number, because 7266257 - 2² = 7266253 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7266251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18632 + ... + 19017.

It is an arithmetic number, because the mean of its divisors is an integer number (1826025).

Almost surely, 2^7266257 is an apocalyptic number.

It is an amenable number.

7266257 is a deficient number, since it is larger than the sum of its proper divisors (37843).

7266257 is a wasteful number, since it uses less digits than its factorization.

7266257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37842.

The product of its digits is 35280, while the sum is 35.

The square root of 7266257 is about 2695.5995622496. The cubic root of 7266257 is about 193.6883880406.

The spelling of 7266257 in words is "seven million, two hundred sixty-six thousand, two hundred fifty-seven".