53530524 has 72 divisors (see below), whose sum is σ = 146578320. Its totient is φ = 16892064.

The previous prime is 53530511. The next prime is 53530531. The reversal of 53530524 is 42503535.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38302 + ... + 39674.

It is an arithmetic number, because the mean of its divisors is an integer number (2035810).

Almost surely, 2^53530524 is an apocalyptic number.

53530524 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53530524, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73289160).

53530524 is an abundant number, since it is smaller than the sum of its proper divisors (93047796).

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

53530524 is a wasteful number, since it uses less digits than its factorization.

53530524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1424 (or 1397 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 27.

The square root of 53530524 is about 7316.4556993123. The cubic root of 53530524 is about 376.8777497881.

The spelling of 53530524 in words is "fifty-three million, five hundred thirty thousand, five hundred twenty-four".