25103425 has 6 divisors (see below), whose sum is σ = 31128278. Its totient is φ = 20082720.

The previous prime is 25103417. The next prime is 25103431. The reversal of 25103425 is 52430152.

It can be written as a sum of positive squares in 3 ways, for example, as 263169 + 24840256 = 513^2 + 4984^2 .

It is not a de Polignac number, because 25103425 - 2³ = 25103417 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25103396 and 25103405.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 502044 + ... + 502093.

Almost surely, 2^25103425 is an apocalyptic number.

25103425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25103425 is a deficient number, since it is larger than the sum of its proper divisors (6024853).

25103425 is a wasteful number, since it uses less digits than its factorization.

25103425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1004147 (or 1004142 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 25103425 is about 5010.3318253385. The cubic root of 25103425 is about 292.8044410986.

Adding to 25103425 its reverse (52430152), we get a palindrome (77533577).

The spelling of 25103425 in words is "twenty-five million, one hundred three thousand, four hundred twenty-five".