25042153321 has 2 divisors, whose sum is σ = 25042153322. Its totient is φ = 25042153320.

The previous prime is 25042153309. The next prime is 25042153363. The reversal of 25042153321 is 12335124052.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16099803225 + 8942350096 = 126885^2 + 94564^2 .

It is a cyclic number.

It is not a de Polignac number, because 25042153321 - 2¹⁹ = 25041629033 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25042153321.

It is not a weakly prime, because it can be changed into another prime (25042153391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12521076660 + 12521076661.

It is an arithmetic number, because the mean of its divisors is an integer number (12521076661).

Almost surely, 2^25042153321 is an apocalyptic number.

It is an amenable number.

25042153321 is a deficient number, since it is larger than the sum of its proper divisors (1).

25042153321 is an equidigital number, since it uses as much as digits as its factorization.

25042153321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 25042153321 its reverse (12335124052), we get a palindrome (37377277373).

The spelling of 25042153321 in words is "twenty-five billion, forty-two million, one hundred fifty-three thousand, three hundred twenty-one".