5725203521 has 2 divisors, whose sum is σ = 5725203522. Its totient is φ = 5725203520.

The previous prime is 5725203467. The next prime is 5725203541. The reversal of 5725203521 is 1253025275.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5174644225 + 550559296 = 71935^2 + 23464^2 .

It is a cyclic number.

It is not a de Polignac number, because 5725203521 - 2¹⁸ = 5724941377 is a prime.

It is not a weakly prime, because it can be changed into another prime (5725203541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2862601760 + 2862601761.

It is an arithmetic number, because the mean of its divisors is an integer number (2862601761).

Almost surely, 2^5725203521 is an apocalyptic number.

It is an amenable number.

5725203521 is a deficient number, since it is larger than the sum of its proper divisors (1).

5725203521 is an equidigital number, since it uses as much as digits as its factorization.

5725203521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21000, while the sum is 32.

The square root of 5725203521 is about 75665.0746447791. The cubic root of 5725203521 is about 1788.9449501853.

Adding to 5725203521 its reverse (1253025275), we get a palindrome (6978228796).

The spelling of 5725203521 in words is "five billion, seven hundred twenty-five million, two hundred three thousand, five hundred twenty-one".