25411220551 has 2 divisors, whose sum is σ = 25411220552. Its totient is φ = 25411220550.

The previous prime is 25411220539. The next prime is 25411220557. The reversal of 25411220551 is 15502211452.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25411220551 - 2⁵ = 25411220519 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25411220557) 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, 12705610275 + 12705610276.

It is an arithmetic number, because the mean of its divisors is an integer number (12705610276).

Almost surely, 2^25411220551 is an apocalyptic number.

25411220551 is a deficient number, since it is larger than the sum of its proper divisors (1).

25411220551 is an equidigital number, since it uses as much as digits as its factorization.

25411220551 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4000, while the sum is 28.

Subtracting from 25411220551 its reverse (15502211452), we obtain a palindrome (9909009099).

The spelling of 25411220551 in words is "twenty-five billion, four hundred eleven million, two hundred twenty thousand, five hundred fifty-one".