7256491 has 6 divisors (see below), whose sum is σ = 7976276. Its totient is φ = 6596700.

The previous prime is 7256401. The next prime is 7256497. The reversal of 7256491 is 1946527.

7256491 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 7256491 - 2⁷ = 7256363 is a prime.

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (7256497) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 29865 + ... + 30106.

Almost surely, 2^7256491 is an apocalyptic number.

7256491 is a deficient number, since it is larger than the sum of its proper divisors (719785).

7256491 is a wasteful number, since it uses less digits than its factorization.

7256491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59993 (or 59982 counting only the distinct ones).

The product of its digits is 15120, while the sum is 34.

The square root of 7256491 is about 2693.7874823378. The cubic root of 7256491 is about 193.6015754004.

The spelling of 7256491 in words is "seven million, two hundred fifty-six thousand, four hundred ninety-one".