1051825 has 6 divisors (see below), whose sum is σ = 1304294. Its totient is φ = 841440.

The previous prime is 1051819. The next prime is 1051829. The reversal of 1051825 is 5281501.

It can be written as a sum of positive squares in 3 ways, for example, as 3249 + 1048576 = 57^2 + 1024^2 .

It is not a de Polignac number, because 1051825 - 2⁷ = 1051697 is a prime.

It is a super-2 number, since 2×1051825² = 2212671661250, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1051796 and 1051805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1051829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21012 + ... + 21061.

2^1051825 is an apocalyptic number.

It is an amenable number.

1051825 is a deficient number, since it is larger than the sum of its proper divisors (252469).

1051825 is an equidigital number, since it uses as much as digits as its factorization.

1051825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42083 (or 42078 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 22.

The square root of 1051825 is about 1025.5851988012. The cubic root of 1051825 is about 101.6984880532.

The spelling of 1051825 in words is "one million, fifty-one thousand, eight hundred twenty-five".