265387000550 has 48 divisors (see below), whose sum is σ = 564197460480. Its totient is φ = 90980067360.

The previous prime is 265387000517. The next prime is 265387000591. The reversal of 265387000550 is 55000783562.

265387000550 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 265387000498 and 265387000507.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3723347 + ... + 3793953.

It is an arithmetic number, because the mean of its divisors is an integer number (11754113760).

Almost surely, 2^265387000550 is an apocalyptic number.

265387000550 is an abundant number, since it is smaller than the sum of its proper divisors (298810459930).

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

265387000550 is a wasteful number, since it uses less digits than its factorization.

With its successor (265387000551) it forms an eRAP, since the sums of their prime factors are consecutive (81365 and 81366).

265387000550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81365 (or 81360 counting only the distinct ones).

The product of its (nonzero) digits is 252000, while the sum is 41.

The spelling of 265387000550 in words is "two hundred sixty-five billion, three hundred eighty-seven million, five hundred fifty", and thus it is an aban number.