2509452289 has 4 divisors (see below), whose sum is σ = 2510740480. Its totient is φ = 2508164100.

The previous prime is 2509452241. The next prime is 2509452317. The reversal of 2509452289 is 9822549052.

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 2509452289 - 2¹⁹ = 2508928001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2509452089) 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, 641169 + ... + 645070.

It is an arithmetic number, because the mean of its divisors is an integer number (627685120).

Almost surely, 2^2509452289 is an apocalyptic number.

It is an amenable number.

2509452289 is a deficient number, since it is larger than the sum of its proper divisors (1288191).

2509452289 is a wasteful number, since it uses less digits than its factorization.

2509452289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1288190.

The product of its (nonzero) digits is 518400, while the sum is 46.

The square root of 2509452289 is about 50094.4337127390. The cubic root of 2509452289 is about 1358.9171543842.

The spelling of 2509452289 in words is "two billion, five hundred nine million, four hundred fifty-two thousand, two hundred eighty-nine".