2525210244421 has 2 divisors, whose sum is σ = 2525210244422. Its totient is φ = 2525210244420.

The previous prime is 2525210244419. The next prime is 2525210244449. The reversal of 2525210244421 is 1244420125252.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2083443975396 + 441766269025 = 1443414^2 + 664655^2 .

It is a cyclic number.

It is not a de Polignac number, because 2525210244421 - 2¹ = 2525210244419 is a prime.

Together with 2525210244419, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2525210244451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1262605122210 + 1262605122211.

It is an arithmetic number, because the mean of its divisors is an integer number (1262605122211).

Almost surely, 2^{2525210244421} is an apocalyptic number.

It is an amenable number.

2525210244421 is a deficient number, since it is larger than the sum of its proper divisors (1).

2525210244421 is an equidigital number, since it uses as much as digits as its factorization.

2525210244421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51200, while the sum is 34.

Adding to 2525210244421 its reverse (1244420125252), we get a palindrome (3769630369673).

The spelling of 2525210244421 in words is "two trillion, five hundred twenty-five billion, two hundred ten million, two hundred forty-four thousand, four hundred twenty-one".