265057500 has 120 divisors (see below), whose sum is σ = 787248000. Its totient is φ = 69368000.

The previous prime is 265057459. The next prime is 265057519. The reversal of 265057500 is 5750562.

265057500 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

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 39 ways as a sum of consecutive naturals, for example, 442201 + ... + 442799.

It is an arithmetic number, because the mean of its divisors is an integer number (6560400).

Almost surely, 2^265057500 is an apocalyptic number.

265057500 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 265057500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (393624000).

265057500 is an abundant number, since it is smaller than the sum of its proper divisors (522190500).

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

265057500 is a wasteful number, since it uses less digits than its factorization.

265057500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 685 (or 668 counting only the distinct ones).

The product of its (nonzero) digits is 10500, while the sum is 30.

The square root of 265057500 is about 16280.5865987685. The cubic root of 265057500 is about 642.3622823018.

The spelling of 265057500 in words is "two hundred sixty-five million, fifty-seven thousand, five hundred".