25237473251 has 2 divisors, whose sum is σ = 25237473252. Its totient is φ = 25237473250.

The previous prime is 25237473241. The next prime is 25237473263. The reversal of 25237473251 is 15237473252.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25237473251 - 2⁶ = 25237473187 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25237473199 and 25237473208.

It is not a weakly prime, because it can be changed into another prime (25237473241) 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, 12618736625 + 12618736626.

It is an arithmetic number, because the mean of its divisors is an integer number (12618736626).

Almost surely, 2^25237473251 is an apocalyptic number.

25237473251 is a deficient number, since it is larger than the sum of its proper divisors (1).

25237473251 is an equidigital number, since it uses as much as digits as its factorization.

25237473251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 352800, while the sum is 41.

Subtracting from 25237473251 its reverse (15237473252), we obtain a palindrome (9999999999).

The spelling of 25237473251 in words is "twenty-five billion, two hundred thirty-seven million, four hundred seventy-three thousand, two hundred fifty-one".