25025363251 has 6 divisors (see below), whose sum is σ = 29111136900. Its totient is φ = 21450311316.

The previous prime is 25025363249. The next prime is 25025363261. The reversal of 25025363251 is 15236352052.

It is not a de Polignac number, because 25025363251 - 2¹ = 25025363249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25025363221) 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 in 5 ways as a sum of consecutive naturals, for example, 255360801 + ... + 255360898.

It is an arithmetic number, because the mean of its divisors is an integer number (4851856150).

Almost surely, 2^25025363251 is an apocalyptic number.

25025363251 is a deficient number, since it is larger than the sum of its proper divisors (4085773649).

25025363251 is an equidigital number, since it uses as much as digits as its factorization.

25025363251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510721713 (or 510721706 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 34.

The spelling of 25025363251 in words is "twenty-five billion, twenty-five million, three hundred sixty-three thousand, two hundred fifty-one".