25013625 has 64 divisors (see below), whose sum is σ = 51297792. Its totient is φ = 10540800.

The previous prime is 25013623. The next prime is 25013629. The reversal of 25013625 is 52631052.

It is not a de Polignac number, because 25013625 - 2¹ = 25013623 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 25013595 and 25013604.

It is not an unprimeable number, because it can be changed into a prime (25013623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 33759 + ... + 34491.

It is an arithmetic number, because the mean of its divisors is an integer number (801528).

Almost surely, 2^25013625 is an apocalyptic number.

25013625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25013625 is an abundant number, since it is smaller than the sum of its proper divisors (26284167).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25013625 is a wasteful number, since it uses less digits than its factorization.

25013625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 771 (or 761 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 25013625 is about 5001.3623144099. The cubic root of 25013625 is about 292.4548838297.

Adding to 25013625 its reverse (52631052), we get a palindrome (77644677).

The spelling of 25013625 in words is "twenty-five million, thirteen thousand, six hundred twenty-five".