528354661 has 2 divisors, whose sum is σ = 528354662. Its totient is φ = 528354660.

The previous prime is 528354653. The next prime is 528354703. The reversal of 528354661 is 166453825.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 403608100 + 124746561 = 20090^2 + 11169^2 .

It is a cyclic number.

It is not a de Polignac number, because 528354661 - 2³ = 528354653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (528354461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 264177330 + 264177331.

It is an arithmetic number, because the mean of its divisors is an integer number (264177331).

Almost surely, 2^528354661 is an apocalyptic number.

It is an amenable number.

528354661 is a deficient number, since it is larger than the sum of its proper divisors (1).

528354661 is an equidigital number, since it uses as much as digits as its factorization.

528354661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 172800, while the sum is 40.

The square root of 528354661 is about 22985.9666100863. The cubic root of 528354661 is about 808.4289320833.

The spelling of 528354661 in words is "five hundred twenty-eight million, three hundred fifty-four thousand, six hundred sixty-one".