2765425289 has 4 divisors (see below), whose sum is σ = 3016827600. Its totient is φ = 2514022980.

The previous prime is 2765425259. The next prime is 2765425303. The reversal of 2765425289 is 9825245672.

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 2765425289 - 2¹² = 2765421193 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2765425259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125701139 + ... + 125701160.

It is an arithmetic number, because the mean of its divisors is an integer number (754206900).

Almost surely, 2^2765425289 is an apocalyptic number.

It is an amenable number.

2765425289 is a deficient number, since it is larger than the sum of its proper divisors (251402311).

2765425289 is a wasteful number, since it uses less digits than its factorization.

2765425289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251402310.

The product of its digits is 2419200, while the sum is 50.

The square root of 2765425289 is about 52587.3111025844. The cubic root of 2765425289 is about 1403.6343140129.

The spelling of 2765425289 in words is "two billion, seven hundred sixty-five million, four hundred twenty-five thousand, two hundred eighty-nine".