25502472031 has 2 divisors, whose sum is σ = 25502472032. Its totient is φ = 25502472030.

The previous prime is 25502472019. The next prime is 25502472041. The reversal of 25502472031 is 13027420552.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25502472031 - 2²⁹ = 24965601119 is a prime.

It is a super-2 number, since 2×25502472031² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25502471984 and 25502472002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25502472041) 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, 12751236015 + 12751236016.

It is an arithmetic number, because the mean of its divisors is an integer number (12751236016).

Almost surely, 2^25502472031 is an apocalyptic number.

25502472031 is a deficient number, since it is larger than the sum of its proper divisors (1).

25502472031 is an equidigital number, since it uses as much as digits as its factorization.

25502472031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16800, while the sum is 31.

Adding to 25502472031 its reverse (13027420552), we get a palindrome (38529892583).

The spelling of 25502472031 in words is "twenty-five billion, five hundred two million, four hundred seventy-two thousand, thirty-one".