1005011225 has 12 divisors (see below), whose sum is σ = 1247219280. Its totient is φ = 803360400.

The previous prime is 1005011209. The next prime is 1005011237. The reversal of 1005011225 is 5221105001.

It is not a de Polignac number, because 1005011225 - 2⁴ = 1005011209 is a prime.

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, 16706 + ... + 47844.

It is an arithmetic number, because the mean of its divisors is an integer number (103934940).

Almost surely, 2^1005011225 is an apocalyptic number.

It is an amenable number.

1005011225 is a deficient number, since it is larger than the sum of its proper divisors (242208055).

1005011225 is a wasteful number, since it uses less digits than its factorization.

1005011225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32440 (or 32435 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 17.

The square root of 1005011225 is about 31701.9120085840. The cubic root of 1005011225 is about 1001.6676258116.

Adding to 1005011225 its reverse (5221105001), we get a palindrome (6226116226).

The spelling of 1005011225 in words is "one billion, five million, eleven thousand, two hundred twenty-five".