4528688561 has 2 divisors, whose sum is σ = 4528688562. Its totient is φ = 4528688560.

The previous prime is 4528688467. The next prime is 4528688573. The reversal of 4528688561 is 1658868254.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3753400225 + 775288336 = 61265^2 + 27844^2 .

It is a cyclic number.

It is not a de Polignac number, because 4528688561 - 2¹⁸ = 4528426417 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (4528628561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2264344280 + 2264344281.

It is an arithmetic number, because the mean of its divisors is an integer number (2264344281).

Almost surely, 2^4528688561 is an apocalyptic number.

It is an amenable number.

4528688561 is a deficient number, since it is larger than the sum of its proper divisors (1).

4528688561 is an equidigital number, since it uses as much as digits as its factorization.

4528688561 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3686400, while the sum is 53.

The square root of 4528688561 is about 67295.5315084144. The cubic root of 4528688561 is about 1654.4646225135.

The spelling of 4528688561 in words is "four billion, five hundred twenty-eight million, six hundred eighty-eight thousand, five hundred sixty-one".