25505303029 has 2 divisors, whose sum is σ = 25505303030. Its totient is φ = 25505303028.

The previous prime is 25505303027. The next prime is 25505303051. The reversal of 25505303029 is 92030350552.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25439612004 + 65691025 = 159498^2 + 8105^2 .

It is a cyclic number.

It is not a de Polignac number, because 25505303029 - 2¹ = 25505303027 is a prime.

It is a super-2 number, since 2×25505303029² (a number of 22 digits) contains 22 as substring.

Together with 25505303027, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 25505302985 and 25505303003.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25505303027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12752651514 + 12752651515.

It is an arithmetic number, because the mean of its divisors is an integer number (12752651515).

Almost surely, 2^25505303029 is an apocalyptic number.

It is an amenable number.

25505303029 is a deficient number, since it is larger than the sum of its proper divisors (1).

25505303029 is an equidigital number, since it uses as much as digits as its factorization.

25505303029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40500, while the sum is 34.

The spelling of 25505303029 in words is "twenty-five billion, five hundred five million, three hundred three thousand, twenty-nine".