2104402525 has 12 divisors (see below), whose sum is σ = 2611871892. Its totient is φ = 1681965440.

The previous prime is 2104402483. The next prime is 2104402561. The reversal of 2104402525 is 5252044012.

It can be written as a sum of positive squares in 6 ways, for example, as 36517849 + 2067884676 = 6043^2 + 45474^2 .

It is not a de Polignac number, because 2104402525 - 2¹³ = 2104394333 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2104402525.

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 11 ways as a sum of consecutive naturals, for example, 10942 + ... + 65791.

It is an arithmetic number, because the mean of its divisors is an integer number (217655991).

Almost surely, 2^2104402525 is an apocalyptic number.

2104402525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2104402525 is a deficient number, since it is larger than the sum of its proper divisors (507469367).

2104402525 is a wasteful number, since it uses less digits than its factorization.

2104402525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77840 (or 77835 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 2104402525 is about 45873.7672858901. The cubic root of 2104402525 is about 1281.4734263546.

Adding to 2104402525 its reverse (5252044012), we get a palindrome (7356446537).

The spelling of 2104402525 in words is "two billion, one hundred four million, four hundred two thousand, five hundred twenty-five".