25200003421501 has 2 divisors, whose sum is σ = 25200003421502. Its totient is φ = 25200003421500.

The previous prime is 25200003421441. The next prime is 25200003421519. The reversal of 25200003421501 is 10512430000252.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25081616504025 + 118386917476 = 5008155^2 + 344074^2 .

It is a cyclic number.

It is not a de Polignac number, because 25200003421501 - 2¹¹ = 25200003419453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25200003421591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12600001710750 + 12600001710751.

It is an arithmetic number, because the mean of its divisors is an integer number (12600001710751).

Almost surely, 2^{25200003421501} is an apocalyptic number.

It is an amenable number.

25200003421501 is a deficient number, since it is larger than the sum of its proper divisors (1).

25200003421501 is an equidigital number, since it uses as much as digits as its factorization.

25200003421501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2400, while the sum is 25.

Adding to 25200003421501 its reverse (10512430000252), we get a palindrome (35712433421753).

The spelling of 25200003421501 in words is "twenty-five trillion, two hundred billion, three million, four hundred twenty-one thousand, five hundred one".