7025509 has 2 divisors, whose sum is σ = 7025510. Its totient is φ = 7025508.

The previous prime is 7025507. The next prime is 7025531. The reversal of 7025509 is 9055207.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4060225 + 2965284 = 2015^2 + 1722^2 .

It is a cyclic number.

It is not a de Polignac number, because 7025509 - 2¹ = 7025507 is a prime.

Together with 7025507, it forms a pair of twin primes.

It is equal to p₄₇₈₂₆₁ and since 7025509 and 478261 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7025507) 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, 3512754 + 3512755.

It is an arithmetic number, because the mean of its divisors is an integer number (3512755).

Almost surely, 2^7025509 is an apocalyptic number.

It is an amenable number.

7025509 is a deficient number, since it is larger than the sum of its proper divisors (1).

7025509 is an equidigital number, since it uses as much as digits as its factorization.

7025509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3150, while the sum is 28.

The square root of 7025509 is about 2650.5676750462. The cubic root of 7025509 is about 191.5252030719.

The spelling of 7025509 in words is "seven million, twenty-five thousand, five hundred nine".