265820000 has 60 divisors (see below), whose sum is σ = 654006276. Its totient is φ = 106320000.

The previous prime is 265819987. The next prime is 265820011. The reversal of 265820000 is 28562.

It is a happy number.

265820000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 13355 + ... + 26645.

Almost surely, 2^265820000 is an apocalyptic number.

265820000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 265820000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (327003138).

265820000 is an abundant number, since it is smaller than the sum of its proper divisors (388186276).

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

265820000 is an equidigital number, since it uses as much as digits as its factorization.

265820000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13321 (or 13298 counting only the distinct ones).

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

The square root of 265820000 is about 16303.9872423895. The cubic root of 265820000 is about 642.9776611201.

Adding to 265820000 its reverse (28562), we get a palindrome (265848562).

The spelling of 265820000 in words is "two hundred sixty-five million, eight hundred twenty thousand".