2752509 has 4 divisors (see below), whose sum is σ = 3670016. Its totient is φ = 1835004.

The previous prime is 2752499. The next prime is 2752513. The reversal of 2752509 is 9052572.

It is a happy number.

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 not a de Polignac number, because 2752509 - 2⁴ = 2752493 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2752109) 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, 458749 + ... + 458754.

It is an arithmetic number, because the mean of its divisors is an integer number (917504).

2^2752509 is an apocalyptic number.

It is an amenable number.

2752509 is a deficient number, since it is larger than the sum of its proper divisors (917507).

2752509 is an equidigital number, since it uses as much as digits as its factorization.

2752509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 917506.

The product of its (nonzero) digits is 6300, while the sum is 30.

The square root of 2752509 is about 1659.0687146710. The cubic root of 2752509 is about 140.1445615612.

The spelling of 2752509 in words is "two million, seven hundred fifty-two thousand, five hundred nine".