528053250 has 64 divisors (see below), whose sum is σ = 1331261568. Its totient is φ = 139400000.

The previous prime is 528053249. The next prime is 528053321. The reversal of 528053250 is 52350825.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 72265 + ... + 79235.

It is an arithmetic number, because the mean of its divisors is an integer number (20800962).

Almost surely, 2^528053250 is an apocalyptic number.

528053250 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 528053250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (665630784).

528053250 is an abundant number, since it is smaller than the sum of its proper divisors (803208318).

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

528053250 is a wasteful number, since it uses less digits than its factorization.

528053250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7092 (or 7082 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 528053250 is about 22979.4092613365. The cubic root of 528053250 is about 808.2751744271.

The spelling of 528053250 in words is "five hundred twenty-eight million, fifty-three thousand, two hundred fifty".