528224261 has 2 divisors, whose sum is σ = 528224262. Its totient is φ = 528224260.

The previous prime is 528224251. The next prime is 528224287. The reversal of 528224261 is 162422825.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 518427361 + 9796900 = 22769^2 + 3130^2 .

It is a cyclic number.

It is not a de Polignac number, because 528224261 - 2¹⁴ = 528207877 is a prime.

It is a super-2 number, since 2×528224261² = 558041739817992242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (528224231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 264112130 + 264112131.

It is an arithmetic number, because the mean of its divisors is an integer number (264112131).

Almost surely, 2^528224261 is an apocalyptic number.

It is an amenable number.

528224261 is a deficient number, since it is larger than the sum of its proper divisors (1).

528224261 is an equidigital number, since it uses as much as digits as its factorization.

528224261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15360, while the sum is 32.

The square root of 528224261 is about 22983.1299217491. The cubic root of 528224261 is about 808.3624188020.

The spelling of 528224261 in words is "five hundred twenty-eight million, two hundred twenty-four thousand, two hundred sixty-one".