25350221131 has 2 divisors, whose sum is σ = 25350221132. Its totient is φ = 25350221130.

The previous prime is 25350221123. The next prime is 25350221159. The reversal of 25350221131 is 13112205352.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25350221131 - 2³ = 25350221123 is a prime.

It is a super-2 number, since 2×25350221131² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25350221096 and 25350221105.

It is not a weakly prime, because it can be changed into another prime (25350221431) 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, 12675110565 + 12675110566.

It is an arithmetic number, because the mean of its divisors is an integer number (12675110566).

Almost surely, 2^25350221131 is an apocalyptic number.

25350221131 is a deficient number, since it is larger than the sum of its proper divisors (1).

25350221131 is an equidigital number, since it uses as much as digits as its factorization.

25350221131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1800, while the sum is 25.

Adding to 25350221131 its reverse (13112205352), we get a palindrome (38462426483).

The spelling of 25350221131 in words is "twenty-five billion, three hundred fifty million, two hundred twenty-one thousand, one hundred thirty-one".