2575503521 has 2 divisors, whose sum is σ = 2575503522. Its totient is φ = 2575503520.

The previous prime is 2575503503. The next prime is 2575503611. The reversal of 2575503521 is 1253055752.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2051093521 + 524410000 = 45289^2 + 22900^2 .

It is a cyclic number.

It is not a de Polignac number, because 2575503521 - 2⁶ = 2575503457 is a prime.

It is not a weakly prime, because it can be changed into another prime (2575503221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1287751760 + 1287751761.

It is an arithmetic number, because the mean of its divisors is an integer number (1287751761).

Almost surely, 2^2575503521 is an apocalyptic number.

It is an amenable number.

2575503521 is a deficient number, since it is larger than the sum of its proper divisors (1).

2575503521 is an equidigital number, since it uses as much as digits as its factorization.

2575503521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 52500, while the sum is 35.

The square root of 2575503521 is about 50749.4189227818. The cubic root of 2575503521 is about 1370.7367271970.

The spelling of 2575503521 in words is "two billion, five hundred seventy-five million, five hundred three thousand, five hundred twenty-one".