528224231 has 2 divisors, whose sum is σ = 528224232. Its totient is φ = 528224230.

The previous prime is 528224171. The next prime is 528224251. The reversal of 528224231 is 132422825.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-528224231 is a prime.

It is a super-2 number, since 2×528224231² = 558041676431082722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 528224194 and 528224203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (528224251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 264112115 + 264112116.

It is an arithmetic number, because the mean of its divisors is an integer number (264112116).

Almost surely, 2^528224231 is an apocalyptic number.

528224231 is a deficient number, since it is larger than the sum of its proper divisors (1).

528224231 is an equidigital number, since it uses as much as digits as its factorization.

528224231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7680, while the sum is 29.

The square root of 528224231 is about 22983.1292690965. The cubic root of 528224231 is about 808.3624034986.

The spelling of 528224231 in words is "five hundred twenty-eight million, two hundred twenty-four thousand, two hundred thirty-one".