2525024221 has 2 divisors, whose sum is σ = 2525024222. Its totient is φ = 2525024220.

The previous prime is 2525024213. The next prime is 2525024231. The reversal of 2525024221 is 1224205252.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1731475321 + 793548900 = 41611^2 + 28170^2 .

It is a cyclic number.

It is not a de Polignac number, because 2525024221 - 2³ = 2525024213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2525024231) 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, 1262512110 + 1262512111.

It is an arithmetic number, because the mean of its divisors is an integer number (1262512111).

Almost surely, 2^2525024221 is an apocalyptic number.

It is an amenable number.

2525024221 is a deficient number, since it is larger than the sum of its proper divisors (1).

2525024221 is an equidigital number, since it uses as much as digits as its factorization.

2525024221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 2525024221 is about 50249.6191129843. The cubic root of 2525024221 is about 1361.7221948521.

Adding to 2525024221 its reverse (1224205252), we get a palindrome (3749229473).

The spelling of 2525024221 in words is "two billion, five hundred twenty-five million, twenty-four thousand, two hundred twenty-one".