2605537259 has 16 divisors (see below), whose sum is σ = 2901206784. Its totient is φ = 2323728000.

The previous prime is 2605537247. The next prime is 2605537289. The reversal of 2605537259 is 9527355062.

It is a cyclic number.

It is not a de Polignac number, because 2605537259 - 2¹² = 2605533163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2605537229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 258209 + ... + 268109.

It is an arithmetic number, because the mean of its divisors is an integer number (181325424).

Almost surely, 2^2605537259 is an apocalyptic number.

2605537259 is a deficient number, since it is larger than the sum of its proper divisors (295669525).

2605537259 is a wasteful number, since it uses less digits than its factorization.

2605537259 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10598.

The product of its (nonzero) digits is 567000, while the sum is 44.

The square root of 2605537259 is about 51044.4635489492. The cubic root of 2605537259 is about 1376.0443431703.

The spelling of 2605537259 in words is "two billion, six hundred five million, five hundred thirty-seven thousand, two hundred fifty-nine".