4527517021 has 2 divisors, whose sum is σ = 4527517022. Its totient is φ = 4527517020.

The previous prime is 4527517009. The next prime is 4527517039. The reversal of 4527517021 is 1207157254.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3485131225 + 1042385796 = 59035^2 + 32286^2 .

It is a cyclic number.

It is not a de Polignac number, because 4527517021 - 2³¹ = 2380033373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4527517081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2263758510 + 2263758511.

It is an arithmetic number, because the mean of its divisors is an integer number (2263758511).

Almost surely, 2^4527517021 is an apocalyptic number.

It is an amenable number.

4527517021 is a deficient number, since it is larger than the sum of its proper divisors (1).

4527517021 is an equidigital number, since it uses as much as digits as its factorization.

4527517021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19600, while the sum is 34.

The square root of 4527517021 is about 67286.8265041531. The cubic root of 4527517021 is about 1654.3219440743.

The spelling of 4527517021 in words is "four billion, five hundred twenty-seven million, five hundred seventeen thousand, twenty-one".