1006025 has 6 divisors (see below), whose sum is σ = 1247502. Its totient is φ = 804800.

The previous prime is 1006021. The next prime is 1006037. The reversal of 1006025 is 5206001.

It can be written as a sum of positive squares in 3 ways, for example, as 16 + 1006009 = 4^2 + 1003^2 .

It is not a de Polignac number, because 1006025 - 2² = 1006021 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1006021) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20096 + ... + 20145.

It is an arithmetic number, because the mean of its divisors is an integer number (207917).

2^1006025 is an apocalyptic number.

It is an amenable number.

1006025 is a deficient number, since it is larger than the sum of its proper divisors (241477).

1006025 is an equidigital number, since it uses as much as digits as its factorization.

1006025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40251 (or 40246 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 1006025 is about 1003.0079760401. The cubic root of 1006025 is about 100.2004313377.

The spelling of 1006025 in words is "one million, six thousand, twenty-five".