52530500 has 48 divisors (see below), whose sum is σ = 125169408. Its totient is φ = 19100000.

The previous prime is 52530437. The next prime is 52530509. The reversal of 52530500 is 503525.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (52530509) 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, 725 + ... + 10275.

It is an arithmetic number, because the mean of its divisors is an integer number (2607696).

Almost surely, 2^52530500 is an apocalyptic number.

52530500 is a gapful number since it is divisible by the number (50) 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 52530500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62584704).

52530500 is an abundant number, since it is smaller than the sum of its proper divisors (72638908).

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

52530500 is a wasteful number, since it uses less digits than its factorization.

52530500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9581 (or 9569 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 20.

The square root of 52530500 is about 7247.7927674569. The cubic root of 52530500 is about 374.5161166277.

The spelling of 52530500 in words is "fifty-two million, five hundred thirty thousand, five hundred".