4526649521 has 2 divisors, whose sum is σ = 4526649522. Its totient is φ = 4526649520.

The previous prime is 4526649503. The next prime is 4526649529. The reversal of 4526649521 is 1259466254.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3725759521 + 800890000 = 61039^2 + 28300^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4526649521 is a prime.

It is not a weakly prime, because it can be changed into another prime (4526649529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2263324760 + 2263324761.

It is an arithmetic number, because the mean of its divisors is an integer number (2263324761).

Almost surely, 2^4526649521 is an apocalyptic number.

It is an amenable number.

4526649521 is a deficient number, since it is larger than the sum of its proper divisors (1).

4526649521 is an equidigital number, since it uses as much as digits as its factorization.

4526649521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 518400, while the sum is 44.

The square root of 4526649521 is about 67280.3799112342. The cubic root of 4526649521 is about 1654.2162779186.

The spelling of 4526649521 in words is "four billion, five hundred twenty-six million, six hundred forty-nine thousand, five hundred twenty-one".