525526220 has 48 divisors (see below), whose sum is σ = 1140023808. Its totient is φ = 203367360.

The previous prime is 525526159. The next prime is 525526231. The reversal of 525526220 is 22625525.

525526220 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89165 + ... + 94875.

It is an arithmetic number, because the mean of its divisors is an integer number (23750496).

Almost surely, 2^525526220 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 525526220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (570011904).

525526220 is an abundant number, since it is smaller than the sum of its proper divisors (614497588).

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

525526220 is a wasteful number, since it uses less digits than its factorization.

525526220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5870 (or 5868 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 525526220 is about 22924.3586606038. The cubic root of 525526220 is about 806.9837626682.

The spelling of 525526220 in words is "five hundred twenty-five million, five hundred twenty-six thousand, two hundred twenty".