53511332 has 36 divisors (see below), whose sum is σ = 112460544. Its totient is φ = 22191120.

The previous prime is 53511331. The next prime is 53511343. The reversal of 53511332 is 23311535.

It is a junction number, because it is equal to n+sod(n) for n = 53511298 and 53511307.

It is not an unprimeable number, because it can be changed into a prime (53511331) 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, 1673 + ... + 10479.

It is an arithmetic number, because the mean of its divisors is an integer number (3123904).

Almost surely, 2^53511332 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 53511332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56230272).

53511332 is an abundant number, since it is smaller than the sum of its proper divisors (58949212).

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

53511332 is a wasteful number, since it uses less digits than its factorization.

53511332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8856 (or 8847 counting only the distinct ones).

The product of its digits is 1350, while the sum is 23.

The square root of 53511332 is about 7315.1440177210. The cubic root of 53511332 is about 376.8327044457.

Adding to 53511332 its reverse (23311535), we get a palindrome (76822867).

The spelling of 53511332 in words is "fifty-three million, five hundred eleven thousand, three hundred thirty-two".