25071025 has 12 divisors (see below), whose sum is σ = 35529472. Its totient is φ = 17191440.

The previous prime is 25071017. The next prime is 25071031. The reversal of 25071025 is 52017052.

It is not a de Polignac number, because 25071025 - 2³ = 25071017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25070987 and 25071005.

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, 71457 + ... + 71806.

Almost surely, 2^25071025 is an apocalyptic number.

25071025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25071025 is a deficient number, since it is larger than the sum of its proper divisors (10458447).

25071025 is a wasteful number, since it uses less digits than its factorization.

25071025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143280 (or 143275 counting only the distinct ones).

The product of its (nonzero) digits is 700, while the sum is 22.

The square root of 25071025 is about 5007.0974626025. The cubic root of 25071025 is about 292.6784164857.

Adding to 25071025 its reverse (52017052), we get a palindrome (77088077).

The spelling of 25071025 in words is "twenty-five million, seventy-one thousand, twenty-five".