180125585 has 4 divisors (see below), whose sum is σ = 216150708. Its totient is φ = 144100464.

The previous prime is 180125563. The next prime is 180125599. The reversal of 180125585 is 585521081.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 130690624 + 49434961 = 11432^2 + 7031^2 .

It is a cyclic number.

It is not a de Polignac number, because 180125585 - 2¹⁴ = 180109201 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 18012554 + ... + 18012563.

It is an arithmetic number, because the mean of its divisors is an integer number (54037677).

Almost surely, 2^180125585 is an apocalyptic number.

It is an amenable number.

180125585 is a deficient number, since it is larger than the sum of its proper divisors (36025123).

180125585 is an equidigital number, since it uses as much as digits as its factorization.

180125585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36025122.

The product of its (nonzero) digits is 16000, while the sum is 35.

The square root of 180125585 is about 13421.0873255486. The cubic root of 180125585 is about 564.7528979240.

The spelling of 180125585 in words is "one hundred eighty million, one hundred twenty-five thousand, five hundred eighty-five".