528752331 has 24 divisors (see below), whose sum is σ = 803066160. Its totient is φ = 334756800.

The previous prime is 528752317. The next prime is 528752363. The reversal of 528752331 is 133257825.

It is a happy number.

528752331 is a `hidden beast` number, since 52 + 87 + 523 + 3 + 1 = 666.

It is not a de Polignac number, because 528752331 - 2¹⁵ = 528719563 is a prime.

It is a super-2 number, since 2×528752331² = 559158055075867122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (528752431) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 685 + ... + 32526.

It is an arithmetic number, because the mean of its divisors is an integer number (33461090).

Almost surely, 2^528752331 is an apocalyptic number.

528752331 is a deficient number, since it is larger than the sum of its proper divisors (274313829).

528752331 is a wasteful number, since it uses less digits than its factorization.

528752331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33307 (or 33304 counting only the distinct ones).

The product of its digits is 50400, while the sum is 36.

The square root of 528752331 is about 22994.6152609693. The cubic root of 528752331 is about 808.6317045353.

The spelling of 528752331 in words is "five hundred twenty-eight million, seven hundred fifty-two thousand, three hundred thirty-one".