53665332 has 48 divisors (see below), whose sum is σ = 144936960. Its totient is φ = 15136992.

The previous prime is 53665327. The next prime is 53665343. The reversal of 53665332 is 23356635.

It is a junction number, because it is equal to n+sod(n) for n = 53665293 and 53665302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2593 + ... + 10679.

It is an arithmetic number, because the mean of its divisors is an integer number (3019520).

Almost surely, 2^53665332 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 53665332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72468480).

53665332 is an abundant number, since it is smaller than the sum of its proper divisors (91271628).

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

53665332 is a wasteful number, since it uses less digits than its factorization.

53665332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8180 (or 8178 counting only the distinct ones).

The product of its digits is 48600, while the sum is 33.

The square root of 53665332 is about 7325.6625638914. The cubic root of 53665332 is about 377.1938532150.

The spelling of 53665332 in words is "fifty-three million, six hundred sixty-five thousand, three hundred thirty-two".