53505528 has 64 divisors (see below), whose sum is σ = 142560000. Its totient is φ = 16676352.

The previous prime is 53505527. The next prime is 53505541. The reversal of 53505528 is 82550535.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53505527) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80863 + ... + 81521.

It is an arithmetic number, because the mean of its divisors is an integer number (2227500).

Almost surely, 2^53505528 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 53505528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71280000).

53505528 is an abundant number, since it is smaller than the sum of its proper divisors (89054472).

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

53505528 is a wasteful number, since it uses less digits than its factorization.

53505528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 884 (or 880 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 33.

The square root of 53505528 is about 7314.7472957034. The cubic root of 53505528 is about 376.8190798169.

It can be divided in two parts, 5350 and 5528, that added together give a triangular number (10878 = T₁₄₇).

The spelling of 53505528 in words is "fifty-three million, five hundred five thousand, five hundred twenty-eight".