25251401400125 has 8 divisors (see below), whose sum is σ = 31513748947512. Its totient is φ = 20201121120000.

The previous prime is 25251401400083. The next prime is 25251401400139. The reversal of 25251401400125 is 52100410415252.

It can be written as a sum of positive squares in 4 ways, for example, as 50338755769 + 25201062644356 = 224363^2 + 5020066^2 .

It is not a de Polignac number, because 25251401400125 - 2⁸ = 25251401399869 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25251401400091 and 25251401400100.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101005605476 + ... + 101005605725.

It is an arithmetic number, because the mean of its divisors is an integer number (3939218618439).

Almost surely, 2^{25251401400125} is an apocalyptic number.

25251401400125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25251401400125 is a deficient number, since it is larger than the sum of its proper divisors (6262347547387).

25251401400125 is an equidigital number, since it uses as much as digits as its factorization.

25251401400125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202011211216 (or 202011211206 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 32.

Adding to 25251401400125 its reverse (52100410415252), we get a palindrome (77351811815377).

The spelling of 25251401400125 in words is "twenty-five trillion, two hundred fifty-one billion, four hundred one million, four hundred thousand, one hundred twenty-five".