2521889369 has 2 divisors, whose sum is σ = 2521889370. Its totient is φ = 2521889368.

The previous prime is 2521889341. The next prime is 2521889417. The reversal of 2521889369 is 9639881252.

2521889369 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2491507225 + 30382144 = 49915^2 + 5512^2 .

It is a cyclic number.

It is not a de Polignac number, because 2521889369 - 2²⁰ = 2520840793 is a prime.

It is a super-2 number, since 2×2521889369² = 12719851978950436322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2521889369.

It is not a weakly prime, because it can be changed into another prime (2521819369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1260944684 + 1260944685.

It is an arithmetic number, because the mean of its divisors is an integer number (1260944685).

Almost surely, 2^2521889369 is an apocalyptic number.

It is an amenable number.

2521889369 is a deficient number, since it is larger than the sum of its proper divisors (1).

2521889369 is an equidigital number, since it uses as much as digits as its factorization.

2521889369 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1866240, while the sum is 53.

The square root of 2521889369 is about 50218.4166317498. The cubic root of 2521889369 is about 1361.1584292559.

The spelling of 2521889369 in words is "two billion, five hundred twenty-one million, eight hundred eighty-nine thousand, three hundred sixty-nine".