1003253305 has 16 divisors (see below), whose sum is σ = 1235407104. Its totient is φ = 781764480.

The previous prime is 1003253299. The next prime is 1003253309. The reversal of 1003253305 is 5033523001.

It is a happy number.

It is not a de Polignac number, because 1003253305 - 2³ = 1003253297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1003253309) 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, 39469 + ... + 59701.

It is an arithmetic number, because the mean of its divisors is an integer number (77212944).

Almost surely, 2^1003253305 is an apocalyptic number.

It is an amenable number.

1003253305 is a deficient number, since it is larger than the sum of its proper divisors (232153799).

1003253305 is a wasteful number, since it uses less digits than its factorization.

1003253305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20496.

The product of its (nonzero) digits is 1350, while the sum is 22.

The square root of 1003253305 is about 31674.1741013085. The cubic root of 1003253305 is about 1001.0832611216.

Adding to 1003253305 its reverse (5033523001), we get a palindrome (6036776306).

The spelling of 1003253305 in words is "one billion, three million, two hundred fifty-three thousand, three hundred five".