25027830 has 24 divisors (see below), whose sum is σ = 65072592. Its totient is φ = 6674064.

The previous prime is 25027823. The next prime is 25027853. The reversal of 25027830 is 3872052.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 25027794 and 25027803.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 138954 + ... + 139133.

It is an arithmetic number, because the mean of its divisors is an integer number (2711358).

Almost surely, 2^25027830 is an apocalyptic number.

25027830 is an abundant number, since it is smaller than the sum of its proper divisors (40044762).

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

25027830 is a wasteful number, since it uses less digits than its factorization.

25027830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278100 (or 278097 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 25027830 is about 5002.7822259219. The cubic root of 25027830 is about 292.5102341368.

Adding to 25027830 its reverse (3872052), we get a palindrome (28899882).

The spelling of 25027830 in words is "twenty-five million, twenty-seven thousand, eight hundred thirty".