528800080 has 40 divisors (see below), whose sum is σ = 1252667592. Its totient is φ = 207527424.

The previous prime is 528800071. The next prime is 528800081. The reversal of 528800080 is 80008825.

It can be written as a sum of positive squares in 4 ways, for example, as 206669376 + 322130704 = 14376^2 + 17948^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (528800081) 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, 58119 + ... + 66598.

Almost surely, 2^528800080 is an apocalyptic number.

It is an amenable number.

528800080 is an abundant number, since it is smaller than the sum of its proper divisors (723867512).

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

528800080 is a wasteful number, since it uses less digits than its factorization.

528800080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124783 (or 124777 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 31.

The square root of 528800080 is about 22995.6535023469. The cubic root of 528800080 is about 808.6560449752.

The spelling of 528800080 in words is "five hundred twenty-eight million, eight hundred thousand, eighty".