2103404425 has 12 divisors (see below), whose sum is σ = 2617512156. Its totient is φ = 1676729600.

The previous prime is 2103404417. The next prime is 2103404431. The reversal of 2103404425 is 5244043012.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 111746041 + 1991658384 = 10571^2 + 44628^2 .

It is not a de Polignac number, because 2103404425 - 2³ = 2103404417 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 2103404425.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 142684 + ... + 156733.

It is an arithmetic number, because the mean of its divisors is an integer number (218126013).

Almost surely, 2^2103404425 is an apocalyptic number.

2103404425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2103404425 is a deficient number, since it is larger than the sum of its proper divisors (514107731).

2103404425 is a wasteful number, since it uses less digits than its factorization.

2103404425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299708 (or 299703 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 2103404425 is about 45862.8872292184. The cubic root of 2103404425 is about 1281.2707970449.

Adding to 2103404425 its reverse (5244043012), we get a palindrome (7347447437).

The spelling of 2103404425 in words is "two billion, one hundred three million, four hundred four thousand, four hundred twenty-five".