180552065 has 4 divisors (see below), whose sum is σ = 216662484. Its totient is φ = 144441648.

The previous prime is 180552061. The next prime is 180552089. The reversal of 180552065 is 560255081.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 560255081 = 383 ⋅1462807.

It can be written as a sum of positive squares in 2 ways, for example, as 86694721 + 93857344 = 9311^2 + 9688^2 .

It is a cyclic number.

It is not a de Polignac number, because 180552065 - 2² = 180552061 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (180552061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18055202 + ... + 18055211.

It is an arithmetic number, because the mean of its divisors is an integer number (54165621).

Almost surely, 2^180552065 is an apocalyptic number.

It is an amenable number.

180552065 is a deficient number, since it is larger than the sum of its proper divisors (36110419).

180552065 is an equidigital number, since it uses as much as digits as its factorization.

180552065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36110418.

The product of its (nonzero) digits is 12000, while the sum is 32.

The square root of 180552065 is about 13436.9663614969. The cubic root of 180552065 is about 565.1982649265.

The spelling of 180552065 in words is "one hundred eighty million, five hundred fifty-two thousand, sixty-five".