52500252 has 48 divisors (see below), whose sum is σ = 141265152. Its totient is φ = 14864640.

The previous prime is 52500251. The next prime is 52500271. The reversal of 52500252 is 25200525.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52500251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6727 + ... + 12257.

It is an arithmetic number, because the mean of its divisors is an integer number (2943024).

Almost surely, 2^52500252 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 52500252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70632576).

52500252 is an abundant number, since it is smaller than the sum of its proper divisors (88764900).

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

52500252 is a wasteful number, since it uses less digits than its factorization.

52500252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5658 (or 5656 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 21.

The square root of 52500252 is about 7245.7057627259. The cubic root of 52500252 is about 374.4442184698. Note that the first 3 decimals are identical.

Adding to 52500252 its reverse (25200525), we get a palindrome (77700777).

The spelling of 52500252 in words is "fifty-two million, five hundred thousand, two hundred fifty-two".