525052220 has 96 divisors (see below), whose sum is σ = 1379911680. Its totient is φ = 163031040.

The previous prime is 525052183. The next prime is 525052243. The reversal of 525052220 is 22250525.

It is a happy number.

525052220 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 564716 + ... + 565644.

It is an arithmetic number, because the mean of its divisors is an integer number (14374080).

Almost surely, 2^525052220 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 525052220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (689955840).

525052220 is an abundant number, since it is smaller than the sum of its proper divisors (854859460).

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

525052220 is a wasteful number, since it uses less digits than its factorization.

525052220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1323 (or 1321 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 23.

The square root of 525052220 is about 22914.0179802670. The cubic root of 525052220 is about 806.7410691871.

The spelling of 525052220 in words is "five hundred twenty-five million, fifty-two thousand, two hundred twenty".