4523525521 has 2 divisors, whose sum is σ = 4523525522. Its totient is φ = 4523525520.

The previous prime is 4523525477. The next prime is 4523525561. The reversal of 4523525521 is 1255253254.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3628857600 + 894667921 = 60240^2 + 29911^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4523525521 is a prime.

It is not a weakly prime, because it can be changed into another prime (4523525561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2261762760 + 2261762761.

It is an arithmetic number, because the mean of its divisors is an integer number (2261762761).

Almost surely, 2^4523525521 is an apocalyptic number.

It is an amenable number.

4523525521 is a deficient number, since it is larger than the sum of its proper divisors (1).

4523525521 is an equidigital number, since it uses as much as digits as its factorization.

4523525521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60000, while the sum is 34.

The square root of 4523525521 is about 67257.1596263179. The cubic root of 4523525521 is about 1653.8356460697.

Adding to 4523525521 its reverse (1255253254), we get a palindrome (5778778775).

It can be divided in two parts, 45235 and 25521, that added together give a square (70756 = 266²).

The spelling of 4523525521 in words is "four billion, five hundred twenty-three million, five hundred twenty-five thousand, five hundred twenty-one".