2004555361 has 2 divisors, whose sum is σ = 2004555362. Its totient is φ = 2004555360.

The previous prime is 2004555349. The next prime is 2004555373. The reversal of 2004555361 is 1635554002.

It is a balanced prime because it is at equal distance from previous prime (2004555349) and next prime (2004555373).

It can be written as a sum of positive squares in only one way, i.e., 1659747600 + 344807761 = 40740^2 + 18569^2 .

It is a cyclic number.

It is not a de Polignac number, because 2004555361 - 2²¹ = 2002458209 is a prime.

It is not a weakly prime, because it can be changed into another prime (2004525361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1002277680 + 1002277681.

It is an arithmetic number, because the mean of its divisors is an integer number (1002277681).

Almost surely, 2^2004555361 is an apocalyptic number.

It is an amenable number.

2004555361 is a deficient number, since it is larger than the sum of its proper divisors (1).

2004555361 is an equidigital number, since it uses as much as digits as its factorization.

2004555361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18000, while the sum is 31.

The square root of 2004555361 is about 44772.2610664237. The cubic root of 2004555361 is about 1260.8768904309.

The spelling of 2004555361 in words is "two billion, four million, five hundred fifty-five thousand, three hundred sixty-one".