53331552 has 72 divisors (see below), whose sum is σ = 152432280. Its totient is φ = 17687040.

The previous prime is 53331547. The next prime is 53331569. The reversal of 53331552 is 25513335.

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 80599 + ... + 81257.

It is an arithmetic number, because the mean of its divisors is an integer number (2117115).

Almost surely, 2^53331552 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 53331552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76216140).

53331552 is an abundant number, since it is smaller than the sum of its proper divisors (99100728).

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

53331552 is a wasteful number, since it uses less digits than its factorization.

53331552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 956 (or 945 counting only the distinct ones).

The product of its digits is 6750, while the sum is 27.

The square root of 53331552 is about 7302.8454728277. The cubic root of 53331552 is about 376.4102207586.

Adding to 53331552 its reverse (25513335), we get a palindrome (78844887).

The spelling of 53331552 in words is "fifty-three million, three hundred thirty-one thousand, five hundred fifty-two".