25005520043233 has 2 divisors, whose sum is σ = 25005520043234. Its totient is φ = 25005520043232.

The previous prime is 25005520043227. The next prime is 25005520043243. The reversal of 25005520043233 is 33234002550052.

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., 24962344190289 + 43175852944 = 4996233^2 + 207788^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25005520043233 is a prime.

It is not a weakly prime, because it can be changed into another prime (25005520043213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12502760021616 + 12502760021617.

It is an arithmetic number, because the mean of its divisors is an integer number (12502760021617).

Almost surely, 2^{25005520043233} is an apocalyptic number.

It is an amenable number.

25005520043233 is a deficient number, since it is larger than the sum of its proper divisors (1).

25005520043233 is an equidigital number, since it uses as much as digits as its factorization.

25005520043233 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108000, while the sum is 34.

Adding to 25005520043233 its reverse (33234002550052), we get a palindrome (58239522593285).

The spelling of 25005520043233 in words is "twenty-five trillion, five billion, five hundred twenty million, forty-three thousand, two hundred thirty-three".