5505050521 has 4 divisors (see below), whose sum is σ = 5505355044. Its totient is φ = 5504746000.

The previous prime is 5505050503. The next prime is 5505050527. The reversal of 5505050521 is 1250505055.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3565881225 + 1939169296 = 59715^2 + 44036^2 .

It is a cyclic number.

It is not a de Polignac number, because 5505050521 - 2⁷ = 5505050393 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5505050521.

It is not an unprimeable number, because it can be changed into a prime (5505050527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123310 + ... + 161911.

It is an arithmetic number, because the mean of its divisors is an integer number (1376338761).

Almost surely, 2^5505050521 is an apocalyptic number.

It is an amenable number.

5505050521 is a deficient number, since it is larger than the sum of its proper divisors (304523).

5505050521 is a wasteful number, since it uses less digits than its factorization.

5505050521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304522.

The product of its (nonzero) digits is 6250, while the sum is 28.

The square root of 5505050521 is about 74196.0276632112. The cubic root of 5505050521 is about 1765.7143083762.

Adding to 5505050521 its reverse (1250505055), we get a palindrome (6755555576).

The spelling of 5505050521 in words is "five billion, five hundred five million, fifty thousand, five hundred twenty-one".