180425825 has 6 divisors (see below), whose sum is σ = 223728054. Its totient is φ = 144340640.

The previous prime is 180425779. The next prime is 180425827. The reversal of 180425825 is 528524081.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 1615441 + 178810384 = 1271^2 + 13372^2 .

It is not a de Polignac number, because 180425825 - 2⁸ = 180425569 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (180425827) 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, 3608492 + ... + 3608541.

It is an arithmetic number, because the mean of its divisors is an integer number (37288009).

Almost surely, 2^180425825 is an apocalyptic number.

It is an amenable number.

180425825 is a deficient number, since it is larger than the sum of its proper divisors (43302229).

180425825 is an equidigital number, since it uses as much as digits as its factorization.

180425825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7217043 (or 7217038 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 35.

The square root of 180425825 is about 13432.2680512265. The cubic root of 180425825 is about 565.0665074293.

The spelling of 180425825 in words is "one hundred eighty million, four hundred twenty-five thousand, eight hundred twenty-five".