1903201625 has 16 divisors (see below), whose sum is σ = 2557905168. Its totient is φ = 1405440000.

The previous prime is 1903201621. The next prime is 1903201637. The reversal of 1903201625 is 5261023091.

It can be written as a sum of positive squares in 8 ways, for example, as 1342269769 + 560931856 = 36637^2 + 23684^2 .

It is not a de Polignac number, because 1903201625 - 2² = 1903201621 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1903201621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 583976 + ... + 587225.

It is an arithmetic number, because the mean of its divisors is an integer number (159869073).

Almost surely, 2^1903201625 is an apocalyptic number.

It is an amenable number.

1903201625 is a deficient number, since it is larger than the sum of its proper divisors (654703543).

1903201625 is a wasteful number, since it uses less digits than its factorization.

1903201625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1171229 (or 1171219 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 1903201625 is about 43625.6991347990. The cubic root of 1903201625 is about 1239.2576255731.

The spelling of 1903201625 in words is "one billion, nine hundred three million, two hundred one thousand, six hundred twenty-five".