2004265261 has 2 divisors, whose sum is σ = 2004265262. Its totient is φ = 2004265260.

The previous prime is 2004265253. The next prime is 2004265273. The reversal of 2004265261 is 1625624002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1323577161 + 680688100 = 36381^2 + 26090^2 .

It is a cyclic number.

It is not a de Polignac number, because 2004265261 - 2³ = 2004265253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2004265231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1002132630 + 1002132631.

It is an arithmetic number, because the mean of its divisors is an integer number (1002132631).

Almost surely, 2^2004265261 is an apocalyptic number.

It is an amenable number.

2004265261 is a deficient number, since it is larger than the sum of its proper divisors (1).

2004265261 is an equidigital number, since it uses as much as digits as its factorization.

2004265261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 2004265261 is about 44769.0212200356. The cubic root of 2004265261 is about 1260.8160626385.

Adding to 2004265261 its reverse (1625624002), we get a palindrome (3629889263).

The spelling of 2004265261 in words is "two billion, four million, two hundred sixty-five thousand, two hundred sixty-one".