2404259521 has 2 divisors, whose sum is σ = 2404259522. Its totient is φ = 2404259520.

The previous prime is 2404259491. The next prime is 2404259531. The reversal of 2404259521 is 1259524042.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1992372496 + 411887025 = 44636^2 + 20295^2 .

It is a cyclic number.

It is not a de Polignac number, because 2404259521 - 2⁵ = 2404259489 is a prime.

It is not a weakly prime, because it can be changed into another prime (2404259531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1202129760 + 1202129761.

It is an arithmetic number, because the mean of its divisors is an integer number (1202129761).

Almost surely, 2^2404259521 is an apocalyptic number.

It is an amenable number.

2404259521 is a deficient number, since it is larger than the sum of its proper divisors (1).

2404259521 is an equidigital number, since it uses as much as digits as its factorization.

2404259521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28800, while the sum is 34.

The square root of 2404259521 is about 49033.2491377025. The cubic root of 2404259521 is about 1339.6575052877.

The spelling of 2404259521 in words is "two billion, four hundred four million, two hundred fifty-nine thousand, five hundred twenty-one".