180563953 has 8 divisors (see below), whose sum is σ = 191647080. Its totient is φ = 169532160.

The previous prime is 180563939. The next prime is 180563963. The reversal of 180563953 is 359365081.

It can be written as a sum of positive squares in 4 ways, for example, as 1459264 + 179104689 = 1208^2 + 13383^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 180563953 - 2¹³ = 180555761 is a prime.

It is a super-2 number, since 2×180563953² = 65206682245972418, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (180563963) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5458 + ... + 19771.

It is an arithmetic number, because the mean of its divisors is an integer number (23955885).

Almost surely, 2^180563953 is an apocalyptic number.

It is an amenable number.

180563953 is a deficient number, since it is larger than the sum of its proper divisors (11083127).

180563953 is a wasteful number, since it uses less digits than its factorization.

180563953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25667.

The product of its (nonzero) digits is 97200, while the sum is 40.

The square root of 180563953 is about 13437.4087159690. The cubic root of 180563953 is about 565.2106693439.

The spelling of 180563953 in words is "one hundred eighty million, five hundred sixty-three thousand, nine hundred fifty-three".