528575247 has 8 divisors (see below), whose sum is σ = 783074480. Its totient is φ = 352383480.

The previous prime is 528575233. The next prime is 528575249. The reversal of 528575247 is 742575825.

528575247 is a `hidden beast` number, since 52 + 8 + 575 + 24 + 7 = 666.

It is not a de Polignac number, because 528575247 - 2¹² = 528571151 is a prime.

It is a super-2 number, since 2×528575247² = 558783583482222018, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (528575249) 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, 9788404 + ... + 9788457.

It is an arithmetic number, because the mean of its divisors is an integer number (97884310).

Almost surely, 2^528575247 is an apocalyptic number.

528575247 is a deficient number, since it is larger than the sum of its proper divisors (254499233).

528575247 is a wasteful number, since it uses less digits than its factorization.

528575247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19576870 (or 19576864 counting only the distinct ones).

The product of its digits is 784000, while the sum is 45.

The square root of 528575247 is about 22990.7643848568. The cubic root of 528575247 is about 808.5414217336.

The spelling of 528575247 in words is "five hundred twenty-eight million, five hundred seventy-five thousand, two hundred forty-seven".