1603360625 has 10 divisors (see below), whose sum is σ = 2003560218. Its totient is φ = 1282688000.

The previous prime is 1603360621. The next prime is 1603360631. The reversal of 1603360625 is 5260633061.

It can be written as a sum of positive squares in 5 ways, for example, as 1218847744 + 384512881 = 34912^2 + 19609^2 .

It is not a de Polignac number, because 1603360625 - 2² = 1603360621 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1603360591 and 1603360600.

It is not an unprimeable number, because it can be changed into a prime (1603360621) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1282064 + ... + 1283313.

Almost surely, 2^1603360625 is an apocalyptic number.

It is an amenable number.

1603360625 is a deficient number, since it is larger than the sum of its proper divisors (400199593).

1603360625 is an frugal number, since it uses more digits than its factorization.

1603360625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2565397 (or 2565382 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 32.

The square root of 1603360625 is about 40041.9857774312. The cubic root of 1603360625 is about 1170.4253998918.

Adding to 1603360625 its reverse (5260633061), we get a palindrome (6863993686).

The spelling of 1603360625 in words is "one billion, six hundred three million, three hundred sixty thousand, six hundred twenty-five".