2630509 has 4 divisors (see below), whose sum is σ = 3006304. Its totient is φ = 2254716.

The previous prime is 2630501. The next prime is 2630521. The reversal of 2630509 is 9050362.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2630509 - 2³ = 2630501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2630501) 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, 187887 + ... + 187900.

It is an arithmetic number, because the mean of its divisors is an integer number (751576).

2^2630509 is an apocalyptic number.

It is an amenable number.

2630509 is a deficient number, since it is larger than the sum of its proper divisors (375795).

2630509 is an equidigital number, since it uses as much as digits as its factorization.

2630509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375794.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 2630509 is about 1621.8843978533. The cubic root of 2630509 is about 138.0426424266.

The spelling of 2630509 in words is "two million, six hundred thirty thousand, five hundred nine".