2104189625 has 8 divisors (see below), whose sum is σ = 2626028808. Its totient is φ = 1683351600.

The previous prime is 2104189621. The next prime is 2104189631. The reversal of 2104189625 is 5269814012.

It can be written as a sum of positive squares in 4 ways, for example, as 440202361 + 1663987264 = 20981^2 + 40792^2 .

It is not a de Polignac number, because 2104189625 - 2² = 2104189621 is a prime.

It is a super-2 number, since 2×2104189625² = 8855227955915281250, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2104189621) 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 in 7 ways as a sum of consecutive naturals, for example, 8416634 + ... + 8416883.

It is an arithmetic number, because the mean of its divisors is an integer number (328253601).

Almost surely, 2^2104189625 is an apocalyptic number.

2104189625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2104189625 is a deficient number, since it is larger than the sum of its proper divisors (521839183).

2104189625 is an equidigital number, since it uses as much as digits as its factorization.

2104189625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16833532 (or 16833522 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 2104189625 is about 45871.4467288748. The cubic root of 2104189625 is about 1281.4302098295.

The spelling of 2104189625 in words is "two billion, one hundred four million, one hundred eighty-nine thousand, six hundred twenty-five".