25830620 has 24 divisors (see below), whose sum is σ = 54510288. Its totient is φ = 10281600.

The previous prime is 25830617. The next prime is 25830641. The reversal of 25830620 is 2603852.

It is a self number, because there is not a number n which added to its sum of digits gives 25830620.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1160 + ... + 7280.

It is an arithmetic number, because the mean of its divisors is an integer number (2271262).

Almost surely, 2^25830620 is an apocalyptic number.

25830620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25830620 is an abundant number, since it is smaller than the sum of its proper divisors (28679668).

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

25830620 is a wasteful number, since it uses less digits than its factorization.

25830620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6341 (or 6339 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 25830620 is about 5082.3832992013. The cubic root of 25830620 is about 295.6048873587.

The spelling of 25830620 in words is "twenty-five million, eight hundred thirty thousand, six hundred twenty".