1000011025 has 36 divisors (see below), whose sum is σ = 1379242452. Its totient is φ = 718398720.

The previous prime is 1000011011. The next prime is 1000011071. The reversal of 1000011025 is 5201100001.

It is a happy number.

It can be written as a sum of positive squares in 18 ways, for example, as 982697104 + 17313921 = 31348^2 + 4161^2 .

It is not a de Polignac number, because 1000011025 - 2⁹ = 1000010513 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 153127 + ... + 159523.

Almost surely, 2^1000011025 is an apocalyptic number.

It is an amenable number.

1000011025 is a deficient number, since it is larger than the sum of its proper divisors (379231427).

1000011025 is a wasteful number, since it uses less digits than its factorization.

1000011025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6470 (or 6452 counting only the distinct ones).

The product of its (nonzero) digits is 10, while the sum is 10.

The square root of 1000011025 is about 31622.9509217593. The cubic root of 1000011025 is about 1000.0036749865.

Adding to 1000011025 its reverse (5201100001), we get a palindrome (6201111026).

It can be divided in two parts, 10000 and 11025, that multiplied together give a square (110250000 = 10500²).

The spelling of 1000011025 in words is "one billion, eleven thousand, twenty-five".