1603755225 has 36 divisors (see below), whose sum is σ = 2878227612. Its totient is φ = 853632000.

The previous prime is 1603755199. The next prime is 1603755233. The reversal of 1603755225 is 5225573061.

1603755225 is a `hidden beast` number, since 1 + 60 + 3 + 75 + 522 + 5 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 233289 + 1603521936 = 483^2 + 40044^2 .

It is not a de Polignac number, because 1603755225 - 2⁵ = 1603755193 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1603755225.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 110385 + ... + 124065.

It is an arithmetic number, because the mean of its divisors is an integer number (79950767).

Almost surely, 2^1603755225 is an apocalyptic number.

1603755225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1603755225 is a deficient number, since it is larger than the sum of its proper divisors (1274472387).

1603755225 is a wasteful number, since it uses less digits than its factorization.

1603755225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14218 (or 14210 counting only the distinct ones).

The product of its (nonzero) digits is 63000, while the sum is 36.

The square root of 1603755225 is about 40046.9128023622. The cubic root of 1603755225 is about 1170.5214090641.

It can be divided in two parts, 160375 and 5225, that added together give a triangular number (165600 = T₅₇₅).

The spelling of 1603755225 in words is "one billion, six hundred three million, seven hundred fifty-five thousand, two hundred twenty-five".