4950845521 has 2 divisors, whose sum is σ = 4950845522. Its totient is φ = 4950845520.

The previous prime is 4950845513. The next prime is 4950845527. The reversal of 4950845521 is 1255480594.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3873693121 + 1077152400 = 62239^2 + 32820^2 .

It is a cyclic number.

It is not a de Polignac number, because 4950845521 - 2³ = 4950845513 is a prime.

It is a super-2 number, since 2×4950845521² = 49021742745611522882, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4950845527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2475422760 + 2475422761.

It is an arithmetic number, because the mean of its divisors is an integer number (2475422761).

Almost surely, 2^4950845521 is an apocalyptic number.

It is an amenable number.

4950845521 is a deficient number, since it is larger than the sum of its proper divisors (1).

4950845521 is an equidigital number, since it uses as much as digits as its factorization.

4950845521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288000, while the sum is 43.

The square root of 4950845521 is about 70362.2449968731. The cubic root of 4950845521 is about 1704.3539513623.

The spelling of 4950845521 in words is "four billion, nine hundred fifty million, eight hundred forty-five thousand, five hundred twenty-one".