5105055521 has 2 divisors, whose sum is σ = 5105055522. Its totient is φ = 5105055520.

The previous prime is 5105055499. The next prime is 5105055533. The reversal of 5105055521 is 1255505015.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3873817600 + 1231237921 = 62240^2 + 35089^2 .

It is a cyclic number.

It is not a de Polignac number, because 5105055521 - 2⁶ = 5105055457 is a prime.

It is not a weakly prime, because it can be changed into another prime (5105055581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2552527760 + 2552527761.

It is an arithmetic number, because the mean of its divisors is an integer number (2552527761).

Almost surely, 2^5105055521 is an apocalyptic number.

It is an amenable number.

5105055521 is a deficient number, since it is larger than the sum of its proper divisors (1).

5105055521 is an equidigital number, since it uses as much as digits as its factorization.

5105055521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6250, while the sum is 29.

The square root of 5105055521 is about 71449.6712448700. The cubic root of 5105055521 is about 1721.8691957345.

The spelling of 5105055521 in words is "five billion, one hundred five million, fifty-five thousand, five hundred twenty-one".