25103312425 has 12 divisors (see below), whose sum is σ = 31206528076. Its totient is φ = 20032056000.

The previous prime is 25103312419. The next prime is 25103312461. The reversal of 25103312425 is 52421330152.

It can be written as a sum of positive squares in 6 ways, for example, as 464359401 + 24638953024 = 21549^2 + 156968^2 .

It is not a de Polignac number, because 25103312425 - 2³ = 25103312417 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25103312393 and 25103312402.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1254726 + ... + 1274575.

Almost surely, 2^25103312425 is an apocalyptic number.

25103312425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25103312425 is a deficient number, since it is larger than the sum of its proper divisors (6103215651).

25103312425 is a wasteful number, since it uses less digits than its factorization.

25103312425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2529708 (or 2529703 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 25103312425 its reverse (52421330152), we get a palindrome (77524642577).

The spelling of 25103312425 in words is "twenty-five billion, one hundred three million, three hundred twelve thousand, four hundred twenty-five".