53208180 has 36 divisors (see below), whose sum is σ = 161398692. Its totient is φ = 14188800.

The previous prime is 53208179. The next prime is 53208187. The reversal of 53208180 is 8180235.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 29354724 + 23853456 = 5418^2 + 4884^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×53208180² = 5662220837824800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53208187) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 147621 + ... + 147980.

It is an arithmetic number, because the mean of its divisors is an integer number (4483297).

Almost surely, 2^53208180 is an apocalyptic number.

It is an amenable number.

53208180 is an abundant number, since it is smaller than the sum of its proper divisors (108190512).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53208180 is a wasteful number, since it uses less digits than its factorization.

53208180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295616 (or 295611 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 53208180 is about 7294.3937376591. The cubic root of 53208180 is about 376.1197464531.

The spelling of 53208180 in words is "fifty-three million, two hundred eight thousand, one hundred eighty".