53506660 has 48 divisors (see below), whose sum is σ = 119246400. Its totient is φ = 20110464.

The previous prime is 53506639. The next prime is 53506693. The reversal of 53506660 is 6660535.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52314 + ... + 53326.

It is an arithmetic number, because the mean of its divisors is an integer number (2484300).

Almost surely, 2^53506660 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53506660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59623200).

53506660 is an abundant number, since it is smaller than the sum of its proper divisors (65739740).

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

53506660 is a wasteful number, since it uses less digits than its factorization.

53506660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1180 (or 1178 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 31.

The square root of 53506660 is about 7314.8246732235. The cubic root of 53506660 is about 376.8217372133.

The spelling of 53506660 in words is "fifty-three million, five hundred six thousand, six hundred sixty".