1806525125 has 16 divisors (see below), whose sum is σ = 2275244400. Its totient is φ = 1431950400.

The previous prime is 1806525121. The next prime is 1806525143. The reversal of 1806525125 is 5215256081.

It can be written as a sum of positive squares in 8 ways, for example, as 358950916 + 1447574209 = 18946^2 + 38047^2 .

It is not a de Polignac number, because 1806525125 - 2² = 1806525121 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1806525121) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 52670 + ... + 79919.

It is an arithmetic number, because the mean of its divisors is an integer number (142202775).

Almost surely, 2^1806525125 is an apocalyptic number.

It is an amenable number.

1806525125 is a deficient number, since it is larger than the sum of its proper divisors (468719275).

1806525125 is a wasteful number, since it uses less digits than its factorization.

1806525125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132713 (or 132703 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 35.

The square root of 1806525125 is about 42503.2366414606. The cubic root of 1806525125 is about 1217.9085201682.

The spelling of 1806525125 in words is "one billion, eight hundred six million, five hundred twenty-five thousand, one hundred twenty-five".