528115520 has 56 divisors (see below), whose sum is σ = 1300962600. Its totient is φ = 203958272.

The previous prime is 528115493. The next prime is 528115529. The reversal of 528115520 is 25511825.

It can be written as a sum of positive squares in 4 ways, for example, as 18800896 + 509314624 = 4336^2 + 22568^2 .

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (528115529) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19175 + ... + 37734.

It is an arithmetic number, because the mean of its divisors is an integer number (23231475).

Almost surely, 2^528115520 is an apocalyptic number.

It is an amenable number.

528115520 is an abundant number, since it is smaller than the sum of its proper divisors (772847080).

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

528115520 is a wasteful number, since it uses less digits than its factorization.

528115520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56955 (or 56945 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 29.

The square root of 528115520 is about 22980.7641300284. The cubic root of 528115520 is about 808.3069447816.

The spelling of 528115520 in words is "five hundred twenty-eight million, one hundred fifteen thousand, five hundred twenty".