528011117 has 4 divisors (see below), whose sum is σ = 535244220. Its totient is φ = 520778016.

The previous prime is 528011111. The next prime is 528011129. The reversal of 528011117 is 711110825.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 96452041 + 431559076 = 9821^2 + 20774^2 .

It is a cyclic number.

It is not a de Polignac number, because 528011117 - 2¹⁶ = 527945581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (528011111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3616442 + ... + 3616587.

It is an arithmetic number, because the mean of its divisors is an integer number (133811055).

Almost surely, 2^528011117 is an apocalyptic number.

It is an amenable number.

528011117 is a deficient number, since it is larger than the sum of its proper divisors (7233103).

528011117 is an equidigital number, since it uses as much as digits as its factorization.

528011117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7233102.

The product of its (nonzero) digits is 560, while the sum is 26.

The square root of 528011117 is about 22978.4924875415. The cubic root of 528011117 is about 808.2536766181.

The spelling of 528011117 in words is "five hundred twenty-eight million, eleven thousand, one hundred seventeen".