2652509 has 4 divisors (see below), whose sum is σ = 2655840. Its totient is φ = 2649180.

The previous prime is 2652487. The next prime is 2652511. The reversal of 2652509 is 9052562.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2652509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2652569) 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, 314 + ... + 2324.

It is an arithmetic number, because the mean of its divisors is an integer number (663960).

2^2652509 is an apocalyptic number.

It is an amenable number.

2652509 is a deficient number, since it is larger than the sum of its proper divisors (3331).

2652509 is a wasteful number, since it uses less digits than its factorization.

2652509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3330.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 2652509 is about 1628.6525105129. The cubic root of 2652509 is about 138.4264098364.

The spelling of 2652509 in words is "two million, six hundred fifty-two thousand, five hundred nine".