1806675025 has 9 divisors (see below), whose sum is σ = 2240540593. Its totient is φ = 1445170000.

The previous prime is 1806675023. The next prime is 1806675041. The reversal of 1806675025 is 5205766081.

The square root of 1806675025 is 42505.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 635392849 + 1171282176 = 25207^2 + 34224^2 .

It is not a de Polignac number, because 1806675025 - 2¹ = 1806675023 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1806675023) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 208275 + ... + 216775.

Almost surely, 2^1806675025 is an apocalyptic number.

1806675025 is the 42505-th square number.

1806675025 is the 21253-rd centered octagonal number.

It is an amenable number.

1806675025 is a deficient number, since it is larger than the sum of its proper divisors (433865568).

1806675025 is an frugal number, since it uses more digits than its factorization.

1806675025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17012 (or 8506 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 40.

The cubic root of 1806675025 is about 1217.9422053604.

The spelling of 1806675025 in words is "one billion, eight hundred six million, six hundred seventy-five thousand, twenty-five".