4956509 has 2 divisors, whose sum is σ = 4956510. Its totient is φ = 4956508.

The previous prime is 4956491. The next prime is 4956521. The reversal of 4956509 is 9056594.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2630884 + 2325625 = 1622^2 + 1525^2 .

It is a cyclic number.

It is not a de Polignac number, because 4956509 - 2⁸ = 4956253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4956529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2478254 + 2478255.

It is an arithmetic number, because the mean of its divisors is an integer number (2478255).

Almost surely, 2^4956509 is an apocalyptic number.

It is an amenable number.

4956509 is a deficient number, since it is larger than the sum of its proper divisors (1).

4956509 is an equidigital number, since it uses as much as digits as its factorization.

4956509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48600, while the sum is 38.

The square root of 4956509 is about 2226.3218545395. The cubic root of 4956509 is about 170.5003597599.

The spelling of 4956509 in words is "four million, nine hundred fifty-six thousand, five hundred nine".