25820132 has 24 divisors (see below), whose sum is σ = 48799296. Its totient is φ = 11883168.

The previous prime is 25820129. The next prime is 25820147. The reversal of 25820132 is 23102852.

It is a junction number, because it is equal to n+sod(n) for n = 25820098 and 25820107.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35153 + ... + 35879.

It is an arithmetic number, because the mean of its divisors is an integer number (2033304).

Almost surely, 2^25820132 is an apocalyptic number.

It is an amenable number.

25820132 is a deficient number, since it is larger than the sum of its proper divisors (22979164).

25820132 is a wasteful number, since it uses less digits than its factorization.

25820132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1427 (or 1425 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 25820132 is about 5081.3513950523. The cubic root of 25820132 is about 295.5648738171.

Adding to 25820132 its reverse (23102852), we get a palindrome (48922984).

It can be divided in two parts, 25820 and 132, that added together give a palindrome (25952).

The spelling of 25820132 in words is "twenty-five million, eight hundred twenty thousand, one hundred thirty-two".