4505521522525 has 12 divisors (see below), whose sum is σ = 5597822826900. Its totient is φ = 3597335838080.

The previous prime is 4505521522501. The next prime is 4505521522577. The reversal of 4505521522525 is 5252251255054.

It can be written as a sum of positive squares in 6 ways, for example, as 444820968601 + 4060700553924 = 666949^2 + 2015118^2 .

It is not a de Polignac number, because 4505521522525 - 2¹⁵ = 4505521489757 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 177021520 + ... + 177046969.

It is an arithmetic number, because the mean of its divisors is an integer number (466485235575).

Almost surely, 2^{4505521522525} is an apocalyptic number.

It is an amenable number.

4505521522525 is a deficient number, since it is larger than the sum of its proper divisors (1092301304375).

4505521522525 is a wasteful number, since it uses less digits than its factorization.

4505521522525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354069008 (or 354069003 counting only the distinct ones).

The product of its (nonzero) digits is 1000000, while the sum is 43.

Adding to 4505521522525 its reverse (5252251255054), we get a palindrome (9757772777579).

The spelling of 4505521522525 in words is "four trillion, five hundred five billion, five hundred twenty-one million, five hundred twenty-two thousand, five hundred twenty-five".