2104208525 has 6 divisors (see below), whose sum is σ = 2609218602. Its totient is φ = 1683366800.

The previous prime is 2104208501. The next prime is 2104208563. The reversal of 2104208525 is 5258024012.

It can be written as a sum of positive squares in 3 ways, for example, as 885481 + 2103323044 = 941^2 + 45862^2 .

It is not a de Polignac number, because 2104208525 - 2⁶ = 2104208461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 in 5 ways as a sum of consecutive naturals, for example, 42084146 + ... + 42084195.

It is an arithmetic number, because the mean of its divisors is an integer number (434869767).

Almost surely, 2^2104208525 is an apocalyptic number.

2104208525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2104208525 is a deficient number, since it is larger than the sum of its proper divisors (505010077).

2104208525 is an equidigital number, since it uses as much as digits as its factorization.

2104208525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84168351 (or 84168346 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 29.

The square root of 2104208525 is about 45871.6527389193. The cubic root of 2104208525 is about 1281.4340464543.

The spelling of 2104208525 in words is "two billion, one hundred four million, two hundred eight thousand, five hundred twenty-five".